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fig1(K ã«å¯Ÿããæ¿çã®æšç§»)ãèŠããšãããŒã¹ã©ã€ã³ã¯ K ãå¢ããã»ã©r*â1ã»tau*=0ã«åŒµãä»ãã®ã«å¯Ÿããæ¡åŒµã¢ãã«ã§ã¯r*ã0.05ã0.2çšåºŠã§é æã¡ã«ãªãã代ããã«tau*ã0.5ã0.6ãŸã§äžæããŸããã€ãŸãã匟å§ã§æœ°ãããããšãAIã®åºåãè³æ¬å®¶ã®æå³éããã確èªã§ããªããªãæãããããšããå¶çŽäžæ¬ã§ãAcemogluã¢ãã«ã®é·æçãªå šé¢åŒŸå§ãžã®åæã黿¢ãããååé ãä»£æ¿ææ®µãšããŠåŸ©æŽ»ããããšããçµæãåºãŸãããfig2ã®ã¬ãžãŒã å³ã§ããè åšthetaã»è³æ¬Kã®å šåã§æ¡åŒµã¢ãã«ã®r*(å³)ãããŒã¹ã©ã€ã³(å·Š)ããã¯ããã«äœãæããããŠããã®ãåãããŸããçä¿
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!pip install -q japanize-matplotlib
import japanize_matplotlib
ââââââââââââââââââââââââââââââââââââââââ 0.0/4.1 MB ? eta -:--:-- ââââºââââââââââââââââââââââââââââââââââââ 0.3/4.1 MB 9.8 MB/s eta 0:00:01 âââââââââââââââââââââââââââžâââââââââââââ 2.8/4.1 MB 40.4 MB/s eta 0:00:01 ââââââââââââââââââââââââââââââââââââââââ 4.1/4.1 MB 42.5 MB/s eta 0:00:00 Preparing metadata (setup.py) ... done Building wheel for japanize-matplotlib (setup.py) ... done
%%writefile model.py
# -*- coding: utf-8 -*-
"""
Automation and Repression: a toy model + JRF's attention-labor extension
==========================================================================
ããŒã¹ã¢ãã« (Acemoglu, Gitmez & Shadmehr "Automation and Repression",
NBER w35336 ã®å®æ§ççµè«ãåçŽåããŠåçŸãããã®):
è³æ¬å®¶åœå®¶ã¯ (a, r, tau) ãéžã¶:
a : èªååæ°Žæº [0,1]
r : 匟å§åŒ·åºŠ [0,1]
tau : ååé
ç [0,1]
è³æ¬ã·ã§ã¢ s(a) = s0 + (1-s0)*a (èªååãé²ãã»ã©è³æ¬åé
çãäžãã)
çç£ Y(K,a) = K^alpha * (a_eff)^beta (a_eff = a + eps, èªååãŒãã§ãçç£ã¯ã§ãã)
åä¹±æå確ç P_revolt = clip(theta * s(a) * (1-r) * (1-tau), 0, 1)
- inequality (s(a)) ãé«ãã»ã©å乱忩ã¯åŒ·ãŸã
- repression (r) ãš redistribution (tau) ã¯ã©ã¡ããåä¹±ãæããä»£æ¿ææ®µ
匟å§ã³ã¹ã C_r(r) = c_r * r^2 * K (äœå¶ã倧ããã»ã©åŒŸå§è£
眮ã®çµ¶å¯Ÿã³ã¹ãã倧ãã)
è³æ¬å®¶ã®ç®ç颿° (ããŒã¹ã©ã€ã³):
V_base = (1 - P_revolt) * (1-tau) * s(a) * Y(K,a) - C_r(r)
â åä¹±ã®è
åšã匷ãã»è³æ¬èç©ãé²ããšãååé
ããã匟å§ã®æ¹ã
(ååé
ã¯ç¶ç¶çãªã³ã¹ãã ã匟å§ã¯å乱確çãçŽæ¥äžãã) æå©ã«ãªãã
é·æçã« r* -> 1 (å®å
šåŒŸå§) ã«åæããããšããã®ãå
è«æã®äž»çµæã
JRFã®ã泚æåŽåãæ¡åŒµ:
ãè³è³ã= AIã®åºåã»ç®ç颿°ãè³æ¬å®¶ã®æå³ããããã¯ãããããšã
ãããé²ãã«ã¯èªååæ°Žæº a ã«æ¯äŸãããç£æ»ïŒæ³šæåŽåããèŠãã
å¿
èŠç£æ»é needed(a) = a
äŸçµŠãããç£æ»é supply(r) = 1 - r
(匟å§ã匷ãã»ã©ãåžæ°ã¯æ
å ±ãé ãã»ååããªãã»ç²æž
ããããªã©ããŠ
ä¿¡é Œã§ããç£æ»ã®æ
ãæãæžãããšããæ³å®)
ããã¯(ç®ç颿°äžæžã)ã«ããå®çŸãã¹:
phi(a, r) = phi_max * clip(needed(a) - supply(r), 0, 1)
= phi_max * clip(a + r - 1, 0, 1)
â a + r > 1 ã«ãªã£ãç¬éãã€ãŸããèªååãèŠæ±ããç£æ»éãã
ã匟å§ãæŒãã€ã¶ããåŸã«æ®ãç£æ»äŸçµŠããäžåã£ãç¬éã«ã
è³æ¬å®¶ãå®éã«åãåããåçãç®æžããå§ããã
æ¡åŒµçã®ç®ç颿°:
V_ext = (1 - P_revolt) * (1-tau) * s(a) * Y(K,a) * (1 - phi(a,r)) - C_r(r)
ãã® phi(a,r) é
ããr ãäžããããããšã®ãæ°ããã³ã¹ãããšããŠåãã
ããŒã¹ã¢ãã«ã§ã¯ r*->1 ã«åŒµãä»ããŠããè§£ããæ¡åŒµã¢ãã«ã§ã¯
r* ããããã 1-a* ä»è¿ã«é æã¡ã«ãªãããšããäºæ³ãæ€èšŒããã
"""
import numpy as np
# ---- åºå®ãã©ã¡ãŒã¿ ---------------------------------------------------
ALPHA = 0.35 # è³æ¬ã®çç£åŒŸåæ§
BETA = 0.65 # èªååã®çç£åŒŸåæ§
S0 = 0.25 # èªååãŒãæç¹ã®è³æ¬åé
ç
C_R = 0.35 # 匟å§ã³ã¹ãä¿æ°
PHI_MAX = 0.9 # ç£æ»åŽ©å£æã®æå€§ãã¹çïŒè³æ¬å®¶ãåãåããåçã®æžå°å¹
ïŒ
EPS = 0.05 # èªååãŒãã§ãçç£ã§ããããã«ãããªãã»ãã
GRID_N = 41 # a, r, tau ã®æ¢çŽ¢ã°ãªããè§£å床
def capital_share(a):
return S0 + (1 - S0) * a
def output(K, a):
a_eff = a + EPS
return (K ** ALPHA) * (a_eff ** BETA)
K0 = 5.0 # è³æ¬èç©ãã©ã®èŠæš¡ãããåä¹±ã®è
åšãçŸå®å³ã垯ã³ãããã®ã¹ã±ãŒã«
def revolt_prob(a, r, tau, K, theta):
s = capital_share(a)
# è³æ¬èç©ãå°ãããã¡ã¯æ Œå·®ãç®ã«èŠããèŠæš¡ã«ãªã£ãŠãããè
åšã¯å°ããã
# K ã K0 ãè¶
ããŠèç©ãé²ãã»ã©è
åšã theta*s(a) ã«æŒžè¿ããã
scale = K / (K + K0)
p = theta * s * scale * (1 - r) * (1 - tau)
return np.clip(p, 0.0, 1.0)
def repression_cost(r, K):
# 匟å§è£
眮(ç£èŠã»æ²»å®æ©æ§)ã®ç¶æã³ã¹ãã¯ãè³æ¬ã¹ããã¯Kãã®ãã®ãã
# ãäœå¶ã®èŠæš¡ãã«ç·©ããã«äŸåããããšããæ³å®ã§ K^0.5 ã§ã¹ã±ãŒã«
# (åè«æã¯ãè³æ¬èç©ãé²ãã»ã©åŒŸå§ã®çžå¯Ÿã³ã¹ããäžããããšããçµæãª
# ã®ã§ãè³æ¬ã®å¢å ããŒã¹ããã³ã¹ãã®å¢å ããŒã¹ãç·©ããŠãã)
return C_R * (r ** 2) * (K ** 0.5)
def hijack_loss(a, r):
"""JRFã®æ³šæåŽåæ¡åŒµ: èªååãèŠæ±ããç£æ»é a ãã
匟å§åŸã«æ®ãç£æ»äŸçµŠ (1-r) ãäžåã£ãåã ãåçãç®æžãããã"""
shortfall = np.clip(a + r - 1.0, 0.0, 1.0)
return PHI_MAX * shortfall
def objective(a, r, tau, K, theta, extended):
s = capital_share(a)
Y = output(K, a)
p_revolt = revolt_prob(a, r, tau, K, theta)
gross = (1 - tau) * s * Y
if extended:
gross = gross * (1 - hijack_loss(a, r))
return (1 - p_revolt) * gross - repression_cost(r, K)
_grid = np.linspace(0.0, 1.0, GRID_N)
_A, _R, _TAU = np.meshgrid(_grid, _grid, _grid, indexing="ij")
def best_response(K, theta, extended):
"""(a, r, tau) ã®ç·åœããã°ãªãããµãŒãã§ capitalist state ã®
æé©è§£ãæ±ãããå³å¯ãªé£ç¶æé©åã§ã¯ãªãã宿§çåŸåãèŠãããã®
ç²ãã°ãªãããµãŒãã§ååãnumpy ã§ãã¯ãã«åããŠäžæ¬è©äŸ¡ããã"""
V = objective(_A, _R, _TAU, K, theta, extended)
idx = np.unravel_index(np.argmax(V), V.shape)
a, r, tau = _grid[idx[0]], _grid[idx[1]], _grid[idx[2]]
return (a, r, tau), V[idx]
if __name__ == "__main__":
# ç°¡åãªåäœç¢ºèª: K ãåºå®ã㊠baseline / extended ãæ¯èŒ
K = 5.0
theta = 1.2
(a_b, r_b, tau_b), v_b = best_response(K, theta, extended=False)
(a_e, r_e, tau_e), v_e = best_response(K, theta, extended=True)
print(f"[baseline] a*={a_b:.2f} r*={r_b:.2f} tau*={tau_b:.2f} V={v_b:.3f}")
print(f"[extended] a*={a_e:.2f} r*={r_e:.2f} tau*={tau_e:.2f} V={v_e:.3f}")
Writing model.py
!python model.py
[baseline] a*=1.00 r*=0.70 tau*=0.00 V=1.103 [extended] a*=0.88 r*=0.12 tau*=0.00 V=0.781
# -*- coding: utf-8 -*-
"""Kã»è
åšæ°Žæºthetaãåãã㊠baseline / extended ã¢ãã«ãæ¯èŒããå³ãåºåããã"""
import numpy as np
import matplotlib
#matplotlib.use("Agg")
import matplotlib.pyplot as plt
from matplotlib import font_manager
from model import best_response
# æ¥æ¬èªã©ãã«çšãã©ã³ãïŒç°å¢ã«IPAexGothicçãããã°äœ¿ãããªããã°è±èªè¡šèšã«ãã©ãŒã«ããã¯ïŒ
JP_FONT = None
for name in ["IPAexGothic", "Noto Sans CJK JP", "TakaoGothic", "Noto Sans JP"]:
matches = [f for f in font_manager.fontManager.ttflist if name.lower() in f.name.lower()]
if matches:
JP_FONT = matches[0].name
break
if JP_FONT:
plt.rcParams["font.family"] = JP_FONT
K_VALUES = np.array([0.5, 1, 2, 3, 5, 8, 12, 18, 25, 35, 50, 70])
THETA = 1.5
results = {"base": {"a": [], "r": [], "tau": []},
"ext": {"a": [], "r": [], "tau": []}}
for K in K_VALUES:
(a, r, tau), _ = best_response(K, THETA, extended=False)
results["base"]["a"].append(a)
results["base"]["r"].append(r)
results["base"]["tau"].append(tau)
(a, r, tau), _ = best_response(K, THETA, extended=True)
results["ext"]["a"].append(a)
results["ext"]["r"].append(r)
results["ext"]["tau"].append(tau)
# ---- å³1: K ã«å¯Ÿããæé© r*, a*, tau* ã®æšç§» (baseline vs extended) ----
fig, axes = plt.subplots(1, 3, figsize=(15, 4.5))
labels = ["a*(automation)", "r*(repression)", "tau*(redistribution)"]
keys = ["a", "r", "tau"]
for ax, key, label in zip(axes, keys, labels):
ax.plot(K_VALUES, results["base"][key], "o-", color="crimson",
label="Baseline (Acemoglu-style)")
ax.plot(K_VALUES, results["ext"][key], "s-", color="steelblue",
label="Extended (+ attention labor)")
ax.set_xlabel("Capital stock K")
ax.set_ylabel(label)
ax.set_ylim(-0.05, 1.05)
ax.set_title(label)
ax.grid(alpha=0.3)
axes[1].legend(loc="lower right", fontsize=9)
fig.suptitle("è³æ¬èç©(K)ã«å¯Ÿããè³æ¬å®¶åœå®¶ã®æé©æ¿ç: ããŒã¹ã©ã€ã³ vs 泚æåŽåæ¡åŒµ (theta=%.1f)" % THETA)
fig.tight_layout(rect=[0, 0, 1, 0.94])
fig.savefig("fig1_policy_vs_K.png", dpi=150)
print("saved fig1_policy_vs_K.png")
plt.show()
# ---- å³2: (K, theta) å¹³é¢ã§ã® r* ã®ããŒããããæ¯èŒ ----
K_grid = np.linspace(0.5, 60, 24)
theta_grid = np.linspace(0.5, 2.5, 24)
R_base = np.zeros((len(theta_grid), len(K_grid)))
R_ext = np.zeros((len(theta_grid), len(K_grid)))
for i, th in enumerate(theta_grid):
for j, K in enumerate(K_grid):
(_, r, _), _ = best_response(K, th, extended=False)
R_base[i, j] = r
(_, r, _), _ = best_response(K, th, extended=True)
R_ext[i, j] = r
fig2, axes2 = plt.subplots(1, 2, figsize=(11, 5.6), sharey=True)
im0 = axes2[0].pcolormesh(K_grid, theta_grid, R_base, vmin=0, vmax=1, cmap="Reds", shading="auto")
axes2[0].set_title("Baseline: r*(K, theta)")
axes2[0].set_xlabel("Capital stock K")
axes2[0].set_ylabel("Revolt threat theta")
im1 = axes2[1].pcolormesh(K_grid, theta_grid, R_ext, vmin=0, vmax=1, cmap="Reds", shading="auto")
axes2[1].set_title("Extended (+attention labor): r*(K, theta)")
axes2[1].set_xlabel("Capital stock K")
fig2.colorbar(im1, ax=axes2, label="optimal repression r*", shrink=0.85)
fig2.suptitle("匟å§åŒ·åºŠr*ã®ã¬ãžãŒã å³: ããŒã¹ã©ã€ã³ã¯è³æ¬èç©ãšãšãã«å
šé¢åŒŸå§ã«åŒµãä»ããã\n"
"泚æåŽåå¶çŽãå
¥ãããšåŒŸå§ãé æã¡ã«ãªã", fontsize=11, y=1.06)
fig2.tight_layout(rect=[0, 0, 1, 0.90])
fig2.savefig("fig2_regime_map.png", dpi=150, bbox_inches="tight")
print("saved fig2_regime_map.png")
plt.show()
# ---- æ°å€ãµããªãããã¹ãã§ãåºå ----
with open("summary.txt", "w") as f:
f.write("K\t a_base r_base tau_base | a_ext r_ext tau_ext\n")
for i, K in enumerate(K_VALUES):
f.write(f"{K:>5}\t {results['base']['a'][i]:.2f} {results['base']['r'][i]:.2f} "
f"{results['base']['tau'][i]:.2f} | "
f"{results['ext']['a'][i]:.2f} {results['ext']['r'][i]:.2f} "
f"{results['ext']['tau'][i]:.2f}\n")
print("saved summary.txt")
!cat summary.txt
saved fig1_policy_vs_K.png
/tmp/ipykernel_650/3585420491.py:89: UserWarning: This figure includes Axes that are not compatible with tight_layout, so results might be incorrect. fig2.tight_layout(rect=[0, 0, 1, 0.90])
saved fig2_regime_map.png
saved summary.txt K a_base r_base tau_base | a_ext r_ext tau_ext 0.5 1.00 0.23 0.00 | 1.00 0.00 0.00 1.0 1.00 0.38 0.00 | 1.00 0.00 0.00 2.0 1.00 0.58 0.00 | 1.00 0.00 0.00 3.0 1.00 0.70 0.00 | 0.90 0.10 0.00 5.0 1.00 0.88 0.00 | 0.80 0.20 0.03 8.0 1.00 1.00 0.00 | 0.85 0.15 0.28 12.0 1.00 1.00 0.00 | 0.90 0.10 0.43 18.0 1.00 1.00 0.00 | 0.90 0.10 0.50 25.0 1.00 1.00 0.00 | 0.93 0.08 0.55 35.0 1.00 1.00 0.00 | 0.93 0.08 0.58 50.0 1.00 1.00 0.00 | 0.95 0.05 0.60 70.0 1.00 1.00 0.00 | 0.95 0.05 0.60
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ïŒïŒã¢ãã«æ§æãæŽçãããšããããã察å¿ã«ãªããŸãã
â ãneeded(a)=a ã§ååããã«ã€ã㊠â ååã§ã¯ãããŸããã§ãã
ãææã®éãã§ãã
needed(a)=aã¯ãèªååçããšãã0ã1ã®æ¯çã«ããããAIã»è³æ¬ã¹ããã¯èªäœã®çµ¶å¯ŸèŠæš¡ãå¢ããŠãã广ãæããããŸãããããã§needed(a,K) = a * K^0.5ã«å€æŽããŸãããããã«éèŠãªã®ã¯äŸçµŠåŽã§ããååã¯åžæ°ç£æ»ã®äŸçµŠå
N_BARãKã«æ¯äŸãããŠããã®ã§ãããããã ãšãå¿ èŠéãäŸçµŠåãåãé床ã§å¢ããããããKã巚倧åããããšèªäœã®å¹æãçžæ®ºãããŠããŸããŸããå®éã«ã¯ãèªååã¯ãŸãã«ã人å£ãå¢ãããã«è³æ¬ã ãå¢ãããæè¡ã®ã¯ããªã®ã§ãåžæ°ç£æ»ãã£ãã·ãã£ã¯Kã«äŸåãããäžå®ã«ããŸãããããã§ãAIã巚倧åããã»ã©ãåºå®ããã人éã®ç£æ»èœåã远ãè¶ããŠããããšããã®ã£ãããåããŠæ°åŒäžã«çŸããŸããâ¡å°æ°ãšãªãŒãç£æ»
远å ã³ã¹ã
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supply_elite(E,r) = E*(1-r)^deltaãšããŠãdeltaã§ããšãªãŒãã®ç£æ»èœåã瀟äŒå šäœã®æå§ã¬ãã«ããã©ãã ãéé¢ã§ããããã衚ããŸãããdelta=0ãªãå®å šéé¢ïŒãéã§è²·åããã°æå§ã®åœ±é¿ãåããªãïŒãdelta=0.6ãªãããšãªãŒãã®åãçµå±ã¯æè²ã»å®å®ãã瀟äŒåºç€ãèŠããã®ã§ã瀟äŒå šäœãžã®æå§ã匷ãŸãã°ãšãªãŒãèªèº«ã®åçç£ã«ã圱é¿ãåã¶ããšããæ³å®ã§ããçµæïŒfig3ïŒ
3ã€ã®ã¬ãžãŒã ãKè»žã§æ¯èŒãããšãçãéãã®çã®éã£ãã¹ããŒãªãŒãåºãŸããã
- åžæ°ç£æ»ã®ã¿ïŒé»ïŒ: ãšãªãŒããšããéãéãç¡ãã®ã§ãKãå¢ããã«ã€ã
r*ã¯äœãæãããtau*ãäžãã£ãŠããââååãšåãã匟å§ã®é æã¡ããã¿ãŒã³ã- ãšãªãŒãéé¢ã»delta=0ïŒèµ€ïŒ: äžèŠæš¡ã®Kã§ã¯
r*ãäžæ°ã«1.0ã«è·³ãäžãããŸãããéã§ãšãªãŒããå²ã蟌ãããªããæ°è¡ãå®å šã«åŒŸå§ãã€ã€ãšãªãŒãç£æ»ã ãã§AIã®ç®ç颿°ã確èªããããšããäœå¶ãæãåŸã«ãªããããã§ã¯ããšãªãŒãã§è¶³ããããšããååã®æžå¿µãçŸå®ã«æç«ããŸãã- ãšãªãŒãã»åçç£å¶çŽããã»delta=0.6ïŒéïŒ: åããšãªãŒãæè³ãã§ããŠãã
r*ã¯0.3ã0.6çšåºŠã§é æã¡ã«ãªããŸãã匟å§ã匷ãããšãšãªãŒãèªèº«ã®äŸçµŠå(E*(1-r)^0.6)ãåããŠããŸããããå šé¢åŒŸå§ã¯ãšãªãŒãç£æ»ãã®ãã®ãèªæ» ãããããšããææ¢ãå¹ããŸãããããŠäžçªãããããã®ã¯K=150ãããã§èµ€(delta=0)ãçªç¶ãé»ã»éãšåãäœrã»é«tauã®ã©ã€ã³ã«åæããããšã§ããå®å šã«æå§å ç«ã®ãšãªãŒããæ³å®ããŠããAIãããèŠæš¡ãè¶ ãããšãå¿ èŠç£æ»é(âK)ã®äŒžã³ã«ãšãªãŒãæè³ã®äºæ¬¡ã³ã¹ãã远ãã€ããªããªããçµæžçã«ããšãªãŒããå²ã蟌ãã§åŒŸå§ãããæŠç¥ãã®ãã®ãå²ã«åããªããªããã€ãŸãââ
AIãããŸãã«ã巚倧ã«ãªãã°ãããšãçæ³çã«æå§ããéé¢ã§ãããšãªãŒãç£æ»äœå¶ãä»®å®ããŠãããããè²·ãæ¯ããã³ã¹ãã®æ¹ãå ã«ç Žç¶»ããçµå±ã¯åºç¯ãªã»åŒŸå§ãããŠããªã人ã ã®æ³šæåŽåã«é ŒããããåŸãªããªã
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çä¿
- ãã®åæãåºãããã«ã匟å§ã³ã¹ã
C_RãšãšãªãŒãè²æã³ã¹ãC_ELITEãããªãäžããŠã匟å§ã»ãšãªãŒãæè³ãæåã¯é åçã«èŠãããæ¡ä»¶ãäœããŸããããã©ã¡ãŒã¿æ¬¡ç¬¬ã§äžè ã®åå²ç¹(Kâ150)ã¯ååŸããŸãââããã¯å®æ§çãªæ©æ§ã®ååšèšŒæã§ãã£ãŠãå®éã®éŸå€ãäºæž¬ãããã®ã§ã¯ãããŸãããtheta=1.5åºå®ã»a=1åºå®ã§ãèŠãããŸããããmodel_v2.pyã«ã¯èªååaãåæã«æé©åãã4次å ç(best_response)ãå ¥ããŠãããŸãããã¡ããåãããšãããšãªãŒããé«ãã€ããªãããã£ãèªååçèªäœãçµãããšãã第4ã®éãéãè³æ¬å®¶ã¯æ€èšããŸãââãããé¢çœãå¯ç£ç©ã§ãæ¬¡ã«æãäžãã䟡å€ããããããããŸãããdeltaã®å€èªäœ(0.6)ã¯ä»®çœ®ãã§ããããšãªãŒãã®ååŒæè²ã瀟äŒå šäœã®æå§ããã©ãã ãéé¢ã§ãããããå®èšŒçã«è£ä»ããææã¯ä»ã®ãšããç¡ãã®ã§ããã®æ°åã¯ãããŸã§ãdelta>0ãªã宿§çã«äœãèµ·ãããããèŠãããã®äžäŸã§ãã
%%writefile model_v2.py
# -*- coding: utf-8 -*-
"""
v2: ç£æ»éèŠã®Kã¹ã±ãŒãªã³ã° + ç£æ»äž»äœã®ãå°æ°ãšãªãŒããchannel
+ ãšãªãŒãã人éã§ãã以äžãåäŸã®æè²ã»åçç£ããèŠããšããå¶çŽ
=====================================================================
ãææãžã®åç: needed(a) = a (0ã1ã®"å²å")ã®ãŸãŸã§ã¯ãAI/è³æ¬ã¹ããã¯
èªäœã巚倧åããŠãã广ãæããããŸãããèªåå"ç"ãåãã§ããè³æ¬
ã¹ããã¯Kã倧ãããªãã°ç£æ»ãã¹ã察象ã®çµ¶å¯Ÿéã¯å¢ããã¯ãã§ããããã§:
needed(a, K) = a * K**GAMMA (GAMMA=0.5)
äžæ¹ãv1ã§ã¯ç£æ»ã®äŸçµŠåŽ supply_broad ã K ã«æ¯äŸãããŠããŸãããã
ããã ãšãå¿
èŠéãäŸçµŠåãåãé床ã§Kã«æ¯äŸããŠå¢ããããããKã
倧ãããªãããšèªäœã®å¹æãçžæ®ºãããŠããŸããŸããå®éã«ã¯ãè³æ¬
(AIã»ããããç)ã®èç©ã¹ããŒããšãç£æ»ãæ
ãã"人å£"ã®å¢å ã¹ããŒãã¯
äžèŽããŸãã(èªååã¯ãŸãã«äººå£æé·ãšåãé¢ããŠè³æ¬ãå¢ããæè¡)ã
ããã§ supply_broad 㯠K ã«äŸåããããã»ãŒäžå®ã®"åžæ°ç£æ»ãã£ãã·ãã£"
ãšããŠåºå®ããŸã:
supply_broad(r) = N_BAR * (1 - r) (N_BAR: åºå®)
ããã«ãããK ã倧ãããªãã»ã©ãå¿
èŠãªç£æ»éãããåºå®ãããåžæ°ã®
ç£æ»ãã£ãã·ãã£ãã远ãè¶ããŠããããšããã®ã£ãããçããŸãã
å°æ°ãšãªãŒãç£æ»äž»äœ (ä»å远å ):
è³æ¬å®¶ã¯è¿œå ã³ã¹ã C_E(E) = c_E * E^2 ãæãããšã§ãå¿ èª ãªãšãªãŒã
ç£æ»èŠå¡ E ã確ä¿ã§ãã (äºæ¬¡ã³ã¹ããªã®ã§ãå€ã確ä¿ããããšããã»ã©
äžäººãããã®éçè²»çšãäžãã=åžå°ãªå¿ èª äººæã®å¥ªãåãã衚çŸ)ã
ãšãªãŒãã®ç£æ»äŸçµŠ:
supply_elite(E, r) = E * (1 - r)**DELTA
DELTA ã¯ããšãªãŒãã®ç£æ»èœåãã瀟äŒå
šäœã®æå§ã¬ãã«ããã©ãã ã
ç¬ç«ããŠããããããã衚ããã©ã¡ãŒã¿:
DELTA = 0 : ãšãªãŒãã¯æå§ã®åœ±é¿ãäžååããªã(è²·åã»å²ã蟌ã¿ã§
å®å
šã«éé¢ã§ããããšããæ¥œèгçä»®å®)
DELTA > 0 : ãšãªãŒããçµå±ã¯äººéã§ããããã®åäŸãæ°ããäžä»£ã®
ç£æ»èŠå¡ãšããŠè²ã€ã«ã¯æè²ã»å®å®ãã瀟äŒåºç€ãèŠãã
瀟äŒå
šäœãžã®æå§ã匷ãŸãã°ããšãªãŒãèªèº«ã®åçç£
(æè²ã»æèœç¶æ¿)ã«ã圱é¿ãåã³ãäŸçµŠåãç®æžãããã
DELTA ã 1 ã«è¿ã¥ããã»ã©ããšãªãŒããçµå±ã¯æ°è¡ãã
éçµ¶ã§ããªãã床åãã匷ããªãã
supply(a,r,E,K) = supply_broad(r) + supply_elite(E,r)
phi(a,r,E,K) = phi_max * clip(1 - supply/needed(a,K), 0, 1) (v1ãšåã)
3ã€ã®ã¬ãžãŒã ãæ¯èŒãã:
regime "broad_only" : E=0 ã«åºå® (ãšãªãŒãç£æ»ãã®ãã®ãååšããªã)
regime "elite_immune" : DELTA=0 (ãšãªãŒãã¯æå§ããå®å
šã«éé¢ã§ãã)
regime "elite_bound" : DELTA=0.6 (ãšãªãŒããåçç£ã«ç€ŸäŒåºç€ãèŠã)
"""
import numpy as np
# ---- åºå®ãã©ã¡ãŒã¿ (v1ããæµçš) --------------------------------------
ALPHA = 0.35
BETA = 0.65
S0 = 0.25
C_R = 0.06
PHI_MAX = 0.9
EPS = 0.05
K0 = 5.0
GAMMA = 0.5 # ç£æ»éèŠã»èªååã®KäŸå床
N_BAR = 1.2 # åºå®ããããåžæ°ç£æ»ãã£ãã·ãã£ãã®èŠæš¡
C_ELITE = 0.15 # ãšãªãŒãç£æ»èŠå¡1人ãããã®éçè²»çšä¿æ°(äºæ¬¡ã³ã¹ã)
GRID_N = 25 # a, r, tau, E ã®æ¢çŽ¢ã°ãªããè§£å床 (4次å
ãªã®ã§v1ããç²ã)
def capital_share(a):
return S0 + (1 - S0) * a
def output(K, a):
a_eff = a + EPS
return (K ** ALPHA) * (a_eff ** BETA)
def revolt_prob(a, r, tau, K, theta):
s = capital_share(a)
scale = K / (K + K0)
p = theta * s * scale * (1 - r) * (1 - tau)
return np.clip(p, 0.0, 1.0)
def repression_cost(r, K):
return C_R * (r ** 2) * (K ** 0.5)
def needed_audit(a, K):
return a * (K ** GAMMA)
def audit_supply(r, E, K, delta):
broad = N_BAR * (1 - r)
elite = E * (1 - r) ** delta
return broad + elite
def hijack_loss(a, r, E, K, delta):
need = needed_audit(a, K)
supply = audit_supply(r, E, K, delta)
with np.errstate(divide="ignore", invalid="ignore"):
ratio = np.where(need > 1e-9, supply / need, 1.0)
shortfall_frac = np.clip(1.0 - ratio, 0.0, 1.0)
return PHI_MAX * shortfall_frac
def elite_cost(E):
return C_ELITE * (E ** 2)
def objective(a, r, tau, E, K, theta, delta, elite_enabled):
s = capital_share(a)
Y = output(K, a)
p_revolt = revolt_prob(a, r, tau, K, theta)
gross = (1 - tau) * s * Y
E_eff = E if elite_enabled else np.zeros_like(E)
phi = hijack_loss(a, r, E_eff, K, delta)
gross = gross * (1 - phi)
cost = repression_cost(r, K) + elite_cost(E_eff)
return (1 - p_revolt) * gross - cost
_grid = np.linspace(0.0, 1.0, GRID_N)
_A, _R, _TAU, _E = np.meshgrid(_grid, _grid, _grid, _grid, indexing="ij")
# ãšãªãŒãã®æ¢çŽ¢äžé㯠0ã1 ã ãš sqrt(K) ã倧ããKã§ã¯çãããã®ã§ã
# Kã«å¿ããŠãšãªãŒãåè£ã®ç¯å²ãã¹ã±ãŒã«ããŠæž¡ã (åŒã³åºãåŽã§èª¿æŽ)
def best_response(K, theta, delta, elite_enabled, e_max=None):
"""4次å
(a, r, tau, E) ã®ç·åœããã°ãªãããµãŒãã
e_max: Eã®æ¢çŽ¢äžé (Kã倧ãããšãã¯å¿
èŠç£æ»éã倧ããã®ã§ã¬ã³ãžãåºãã)"""
if e_max is None:
e_max = max(1.0, needed_audit(1.0, K))
E_local = _E * e_max
V = objective(_A, _R, _TAU, E_local, K, theta, delta, elite_enabled)
idx = np.unravel_index(np.argmax(V), V.shape)
a, r, tau = _grid[idx[0]], _grid[idx[1]], _grid[idx[2]]
e = E_local[idx]
return (a, r, tau, e), V[idx]
_grid3 = np.linspace(0.0, 1.0, 41)
_R3, _TAU3, _E3 = np.meshgrid(_grid3, _grid3, _grid3, indexing="ij")
def best_response_fixed_a(K, theta, delta, elite_enabled, a=1.0, e_max=None):
"""èªååæ°Žæº a ãåºå®ãã(r, tau, E) ã ããæé©åããçã
ãèªååãçµãããšãã远å ã®éãéãå°ããæå§/ååé
/ãšãªãŒãæè³
ã®äžè
æäžã ãã«çµã£ãŠ v1 ãšã®å¯Ÿå¿ãèŠãããããããã®æ¯èŒçšã"""
if e_max is None:
e_max = max(1.0, needed_audit(a, K))
E_local = _E3 * e_max
a_arr = np.full_like(_R3, a)
V = objective(a_arr, _R3, _TAU3, E_local, K, theta, delta, elite_enabled)
idx = np.unravel_index(np.argmax(V), V.shape)
r, tau = _grid3[idx[0]], _grid3[idx[1]]
e = E_local[idx]
return (a, r, tau, e), V[idx]
if __name__ == "__main__":
K = 40.0
theta = 1.5
for label, delta, enabled in [
("broad_only ", 0.0, False),
("elite_immune", 0.0, True),
("elite_bound ", 0.6, True),
]:
(a, r, tau, e), v = best_response(K, theta, delta, enabled)
need = needed_audit(a, K)
sup = audit_supply(r, e, K, delta if enabled else 0.0) if enabled else N_BAR * (1 - r)
print(f"[{label}] a*={a:.2f} r*={r:.2f} tau*={tau:.2f} E*={e:.2f} "
f"needed={need:.2f} supply={sup:.2f} V={v:.3f}")
Writing model_v2.py
!python model_v2.py
[broad_only ] a*=0.17 r*=0.12 tau*=0.00 E*=0.00 needed=1.05 supply=1.05 V=0.277 [elite_immune] a*=1.00 r*=1.00 tau*=0.00 E*=1.84 needed=6.32 supply=1.84 V=0.471 [elite_bound ] a*=0.21 r*=0.12 tau*=0.00 E*=0.26 needed=1.32 supply=1.29 V=0.301
# -*- coding: utf-8 -*-
"""v2: K-scaledç£æ»éèŠ + ãšãªãŒãç£æ» + åçç£å¶çŽã®3ã¬ãžãŒã æ¯èŒãæç»ããã"""
import numpy as np
import matplotlib
#matplotlib.use("Agg")
import matplotlib.pyplot as plt
from matplotlib import font_manager
import model_v2 as m
JP_FONT = None
for name in ["IPAexGothic", "Noto Sans CJK JP", "TakaoGothic", "Noto Sans JP"]:
matches = [f for f in font_manager.fontManager.ttflist if name.lower() in f.name.lower()]
if matches:
JP_FONT = matches[0].name
break
if JP_FONT:
plt.rcParams["font.family"] = JP_FONT
THETA = 1.5
K_VALUES = np.array([2, 5, 10, 20, 40, 80, 150, 300, 500])
REGIMES = [
("broad_only", 0.0, False, "åžæ°ç£æ»ã®ã¿ (ãšãªãŒãç¡ã)", "black"),
("elite_immune", 0.0, True, "ãšãªãŒãç£æ»ããã»æå§ããå®å
šã«éé¢ (delta=0)", "crimson"),
("elite_bound", 0.6, True, "ãšãªãŒãç£æ»ããã»åçç£ã«ç€ŸäŒåºç€ãå¿
èŠ (delta=0.6)", "steelblue"),
]
data = {key: {"r": [], "tau": [], "e": [], "need": []} for key, *_ in REGIMES}
for K in K_VALUES:
need = m.needed_audit(1.0, K)
for key, delta, enabled, _, _ in REGIMES:
(a, r, tau, e), v = m.best_response_fixed_a(K, THETA, delta, enabled, a=1.0)
data[key]["r"].append(r)
data[key]["tau"].append(tau)
data[key]["e"].append(e)
data[key]["need"].append(need)
fig, axes = plt.subplots(1, 3, figsize=(16, 4.8))
for ax, field, title in zip(axes, ["r", "tau", "e"],
["r*(repression)", "tau*(redistribution)", "E*(elite audit investment)"]):
for key, delta, enabled, label, color in REGIMES:
ax.plot(K_VALUES, data[key][field], "o-", color=color, label=label)
ax.set_xscale("log")
ax.set_xlabel("Capital stock K (log scale)")
ax.set_ylabel(title)
ax.set_title(title)
ax.grid(alpha=0.3)
axes[0].legend(loc="center left", bbox_to_anchor=(0.0, -0.55), fontsize=8.5, ncol=1)
fig.suptitle("èªåå a=1 åºå®ã»è
åš theta=%.1f: 3ã€ã®ç£æ»ã¬ãžãŒã ã§ã®æé© (r*, tau*, E*) ã®æšç§»" % THETA,
fontsize=12)
fig.tight_layout(rect=[0, 0.05, 1, 0.93])
fig.savefig("fig3_elite_regimes.png", dpi=150, bbox_inches="tight")
print("saved fig3_elite_regimes.png")
plt.show()
with open("summary_v2.txt", "w") as f:
f.write("K\tneed\t| r_broad tau_broad | r_eliteImmune tau_eliteImmune E_eliteImmune | r_eliteBound tau_eliteBound E_eliteBound\n")
for i, K in enumerate(K_VALUES):
row = f"{K:>4}\t{data['broad_only']['need'][i]:.2f}\t| "
row += f"{data['broad_only']['r'][i]:.2f} {data['broad_only']['tau'][i]:.2f} | "
row += f"{data['elite_immune']['r'][i]:.2f} {data['elite_immune']['tau'][i]:.2f} {data['elite_immune']['e'][i]:.2f} | "
row += f"{data['elite_bound']['r'][i]:.2f} {data['elite_bound']['tau'][i]:.2f} {data['elite_bound']['e'][i]:.2f}\n"
f.write(row)
print("saved summary_v2.txt")
!cat summary_v2.txt
saved fig3_elite_regimes.png
saved summary_v2.txt K need | r_broad tau_broad | r_eliteImmune tau_eliteImmune E_eliteImmune | r_eliteBound tau_eliteBound E_eliteBound 2 1.41 | 0.00 0.00 | 0.83 0.00 1.20 | 0.30 0.00 0.71 5 2.24 | 0.38 0.00 | 1.00 0.00 2.24 | 0.43 0.00 1.01 10 3.16 | 0.53 0.00 | 1.00 0.00 2.21 | 0.55 0.00 0.71 20 4.47 | 0.18 0.50 | 1.00 0.00 2.01 | 0.62 0.00 0.56 40 6.32 | 0.12 0.58 | 1.00 0.00 1.74 | 0.15 0.55 0.32 80 8.94 | 0.10 0.60 | 1.00 0.00 1.57 | 0.10 0.60 0.22 150 12.25 | 0.08 0.62 | 0.10 0.62 0.31 | 0.10 0.62 0.31 300 17.32 | 0.08 0.62 | 0.10 0.62 0.43 | 0.08 0.62 0.43 500 22.36 | 0.05 0.65 | 0.05 0.65 0.00 | 0.05 0.65 0.00
Grok:ïŒïŒ
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ã ãã $K=150$ 以éã®èµ€ã®è»¢èœã¯ãã倧è¡ã®æ³šæã«é Œãã®ãåçã«ãªã£ããã§ã¯ãªããç£æ»ãè²·ãããšèªäœãç Žç£ãã$\phi\approx 0.8$ ã飲ãã ããã§ãåä¹±ã ã $\tau$ ã§åã£ãŠãããåžæ°ç£æ»ãå šéã«ããŠãäŸçµŠã¯ 1.2ãå¿ èŠã¯ 12 ã§ãããäœ $r$ ã¯ç£æ»ãæã£ãŠããªããåä¹±é $(1-r)(1-\tau)$ ã®æé©åãšããŠäœ $r$ã»é« $\tau$ ãåºãŠããã
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- åžæ°ã®ã¿ïŒåŒŸå§ã¯é æã¡ãååé ãäžããã
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ãå©ç远æ±ãäžäœåç¶ã«è¿ä»ãããåŒã«ãããªã¶
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$$ \mathrm{supply}_{broad}=N(1-r)\,(1+\xi\tau),\qquad \theta=\theta_0(1-\eta\tau) $$
åè ã¯ãæã£ãçžæãçŸå ŽãèŠããããåŸè ã¯ãåçç£ãšæè²ãå®å®ãããšå乱忩ãã®ãã®ãèœã¡ãããããããªããšãé« $K$ ã®é« $\tau$ ã¯äžäœåç¶ãžã®æ¥è¿ã§ã¯ãªããããã¯ãæäžãšããåä¹±ä¿éºã§ããã
$\delta$ ããæè²ã瀟äŒåºç€ã«äŸåãããšãã話ãªãã$\tau$ ãšçµãã æ¹ãèªç¶ã§ããã匟å§ã ãã§ãªããåŠæ ¡ã»æ²»å®ä»¥å€ã®å ¬å ±è²¡ããšãªãŒãã®æ¬¡äžä»£äŸçµŠãæ¯ããããšçœ®ãã
$$ \mathrm{supply}_{elite}=E\,(1-r)^\delta\,(1+\zeta\tau) $$
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ïŒïŒGrokã®ææã¯æ£ããã§ããèªããã¹ãç¹ããå§ããŸãã
ãŸãççŽã«èšããšãç§ã®ååã®èª¬æã¯èª€ãã§ãããK=150以éã®åæã¯ã倧è¡ç£æ»ãæ©èœããŠå®å®ãããã®ã§ã¯ãªããç£æ»è³Œå ¥èªäœãçµæžçã«ç Žç¶»ããÏâ0.8ã®ããã¯æå€±ãçåããäžã§åä¹±ãªã¹ã¯ã ããÏã§åã£ãŠããç¶æ ã§ãããÏã¯åä¹±ææ¢ã«ããå¹ããŠãããç£æ»äŸçµŠã«ã¯äžåå ¥ã£ãŠããªãã£ãã®ã§ããå©ç远æ±ãäžäœåç¶ã«è¿ã¥ãããšãã説æãšã¯äžèº«ãéããã®ãèŠãŠãããè§£éããŠããŸããŸãããããã¯èšæ£ããŸããNow update the objective and best_response functions to pass
tauintohijack_loss:Also update the__main__block that referencesaudit_supplydirectly:Let me add phi tracking to this script:Good, this will work. Let's run it:Good â this shows the qualitative structure clearly, with the caveats I need to flag. Let's ship everything.â ÏãäŸçµŠãã£ãã«ã«å ¥ãã广ïŒv3, fig4ïŒGrokã®æ¡éãã
supply_broad *= (1+ΟÏ)ãsupply_elite *= (1+ζÏ)ãtheta *= (1-ηÏ)ã远å ããŸãããçµæãK=40ä»è¿ã§ã¯Ïãå®éã«ÏãäžããïŒK=40ã§elite_boundã®Ï=0.39 vs elite_immuneã®Ï=0.64ïŒããã«ãªããÏãæ¬åœã«ãæ€èšŒèœåãè²·ããæ©èœãæã¡ãŸããããã ãé«Kã§ã®åæãã®ãã®ã¯å€ãããŸããã§ãããfig4ã®å³ç«¯ããã«ãèŠããšãÏã¯ã©ã®ã¬ãžãŒã ã§ãçµå±0.7ã0.8ãŸã§éãäžãããŸããçç±ã¯åçŽã§ã
needed=K^0.5ã¯ç¡éã«äŒžã³ãã®ã«å¯ŸããÏã«ããäŸçµŠã®åºäžãã¯(1+ΟÏ)ãšããæçãªåçã«ãããããšãªãŒãæè³ãäºæ¬¡ã³ã¹ãã§é æã¡ã«ãªãããã§ããã€ãŸãÏãäŸçµŠã«å¹ãããŠãããç£æ»éèŠãäžéã®ãªã颿°ã§äŒžã³ç¶ããéãããã€ãã¯è¿œãã€ããªããªãããšããæ§é ã¯å€ãããŸãããããã¯Grokã®ææéããç§ã®ååã®èª¬æïŒãåºç¯ãªç£æ»ã«é Œãããšã§å®å®ãããïŒãèšãéãã§ãããâ¡Î³ (ç£æ»éèŠã®åŒŸæ§) 㚠α (çç£ã®è³æ¬åŒŸæ§) ã®æåºŠç¢ºèª
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K_totalã5â80000ãŸã§4æ¡åããŠããK_H*ã¯ã»ãŒ1ã1.5ãããã«åŒµãä»ãããŸãŸãã»ãšãã©ã®æé·ã¯K_AI*åŽã«åžåãããŸããäžå€®ããã«ãèŠããšããã®ãçã眮ããã人éçµæžãã®å éšã§ã¯ãr*ã¯æåãã0.3ã0.4çšåºŠãããã®ã®ãK_totalãæ°çŸãè¶ ãããšr*â0ã»Ï*ãç·©ããã«äžããã ãã§ãÏïŒããã¯æå€±ïŒãK_total=1000ããããŸã§ã¯ã»ãŒãŒãã«ä¿ãããŸããåäžçµæžã®ãŸãŸæ¡å€§ãããv3(fig4)ã§Ïãæ©ã ã«0.5ã0.8ãŸã§åŽ©ããŠããã®ãšå¯Ÿç §çã§ããã€ãŸããã®å颿Šç¥ã¯ãã人éçµæžãç£æ»å¯èœãªçµ¶å¯ŸèŠæš¡ã«çããæ®ãã¯ç£æ»ãæåãã諊ããŠèªç±ã«è²ãŠãããšããJRFããã®çŽæããå°ãªããšãåºã
K_totalã®ã¬ã³ãžã§ã¯æ¯æããçµæã«ãªããŸãããçä¿ããŠããã¹ãç¹
- å³ããã«ãèŠããš
Ï*ã¯K_totalãšãšãã«äžããç¶ããŠããããŒãã§å®å®ããŠããããã§ã¯ãããŸãããå®éãK_totalã10âŽã10âµã«ãªããšÏã¯åã³0.5ã0.7ãŸã§éãäžãã£ãŠããŸã(summary_v4.txtåç §)ãã€ãŸããã®ãåé¢ãã¯åé¡ãæ¶ããã®ã§ã¯ãªããåã厩å£ããã£ãšå€§ããªK_totalãŸã§å éãããŠããã ãã§ããγ=0.5(â¥Î±)ãæ¡çšããŠãã以äžããããK_H*èªèº«ãåãéåœããã©ãã¯ãã§ããκ=0.35ã¯ä»®çœ®ãã§ãããããå°ãããããšåé¢èªäœãå²ã«åããªããªã(å šéšäººéçµæžã«æ®ããæ¹ããŸã)ã倧ãããããšéã«äººéçµæžããŒãã«ããŠå šéšAIçµæžã«æããŠããŸãå¯èœæ§ããããŸãã- AIçµæžã»ã¯ã¿ãŒã®åä¹±ãªã¹ã¯ããŒããšçœ®ããŠããŸãããããã¯ãAIçµæžã¯äººéãçŽæ¥éçšã»å奪ããªãã®ã§äººéã®å乱忩ã«é¢äžããªãããšãã匷ãä»®å®ã§ããããAIçµæžã®ååšèªäœã(æ Œå·®ã®å¯èŠåãªã©ãéããŠ)人éçµæžåŽã®
thetaãæŒãäžãããªãããã®åé¢ã®ããŸã¿ã¯ãã£ãšå°ãããªãã¯ãã§ãã
%%writefile model_v3.py
# -*- coding: utf-8 -*-
"""
v3: ç£æ»éèŠã®Kã¹ã±ãŒãªã³ã° + ç£æ»äž»äœã®ãå°æ°ãšãªãŒããchannel
+ ãšãªãŒãã人éã§ãã以äžãåäŸã®æè²ã»åçç£ããèŠããšããå¶çŽ
=====================================================================
ãææãžã®åç: needed(a) = a (0ã1ã®"å²å")ã®ãŸãŸã§ã¯ãAI/è³æ¬ã¹ããã¯
èªäœã巚倧åããŠãã广ãæããããŸãããèªåå"ç"ãåãã§ããè³æ¬
ã¹ããã¯Kã倧ãããªãã°ç£æ»ãã¹ã察象ã®çµ¶å¯Ÿéã¯å¢ããã¯ãã§ããããã§:
needed(a, K) = a * K**GAMMA (GAMMA=0.5)
äžæ¹ãv1ã§ã¯ç£æ»ã®äŸçµŠåŽ supply_broad ã K ã«æ¯äŸãããŠããŸãããã
ããã ãšãå¿
èŠéãäŸçµŠåãåãé床ã§Kã«æ¯äŸããŠå¢ããããããKã
倧ãããªãããšèªäœã®å¹æãçžæ®ºãããŠããŸããŸããå®éã«ã¯ãè³æ¬
(AIã»ããããç)ã®èç©ã¹ããŒããšãç£æ»ãæ
ãã"人å£"ã®å¢å ã¹ããŒãã¯
äžèŽããŸãã(èªååã¯ãŸãã«äººå£æé·ãšåãé¢ããŠè³æ¬ãå¢ããæè¡)ã
ããã§ supply_broad 㯠K ã«äŸåããããã»ãŒäžå®ã®"åžæ°ç£æ»ãã£ãã·ãã£"
ãšããŠåºå®ããŸã:
supply_broad(r) = N_BAR * (1 - r) (N_BAR: åºå®)
ããã«ãããK ã倧ãããªãã»ã©ãå¿
èŠãªç£æ»éãããåºå®ãããåžæ°ã®
ç£æ»ãã£ãã·ãã£ãã远ãè¶ããŠããããšããã®ã£ãããçããŸãã
å°æ°ãšãªãŒãç£æ»äž»äœ (ä»å远å ):
è³æ¬å®¶ã¯è¿œå ã³ã¹ã C_E(E) = c_E * E^2 ãæãããšã§ãå¿ èª ãªãšãªãŒã
ç£æ»èŠå¡ E ã確ä¿ã§ãã (äºæ¬¡ã³ã¹ããªã®ã§ãå€ã確ä¿ããããšããã»ã©
äžäººãããã®éçè²»çšãäžãã=åžå°ãªå¿ èª äººæã®å¥ªãåãã衚çŸ)ã
ãšãªãŒãã®ç£æ»äŸçµŠ:
supply_elite(E, r) = E * (1 - r)**DELTA
DELTA ã¯ããšãªãŒãã®ç£æ»èœåãã瀟äŒå
šäœã®æå§ã¬ãã«ããã©ãã ã
ç¬ç«ããŠããããããã衚ããã©ã¡ãŒã¿:
DELTA = 0 : ãšãªãŒãã¯æå§ã®åœ±é¿ãäžååããªã(è²·åã»å²ã蟌ã¿ã§
å®å
šã«éé¢ã§ããããšããæ¥œèгçä»®å®)
DELTA > 0 : ãšãªãŒããçµå±ã¯äººéã§ããããã®åäŸãæ°ããäžä»£ã®
ç£æ»èŠå¡ãšããŠè²ã€ã«ã¯æè²ã»å®å®ãã瀟äŒåºç€ãèŠãã
瀟äŒå
šäœãžã®æå§ã匷ãŸãã°ããšãªãŒãèªèº«ã®åçç£
(æè²ã»æèœç¶æ¿)ã«ã圱é¿ãåã³ãäŸçµŠåãç®æžãããã
DELTA ã 1 ã«è¿ã¥ããã»ã©ããšãªãŒããçµå±ã¯æ°è¡ãã
éçµ¶ã§ããªãã床åãã匷ããªãã
supply(a,r,E,K) = supply_broad(r) + supply_elite(E,r)
phi(a,r,E,K) = phi_max * clip(1 - supply/needed(a,K), 0, 1) (v1ãšåã)
3ã€ã®ã¬ãžãŒã ãæ¯èŒãã:
regime "broad_only" : E=0 ã«åºå® (ãšãªãŒãç£æ»ãã®ãã®ãååšããªã)
regime "elite_immune" : DELTA=0 (ãšãªãŒãã¯æå§ããå®å
šã«éé¢ã§ãã)
regime "elite_bound" : DELTA=0.6 (ãšãªãŒããåçç£ã«ç€ŸäŒåºç€ãèŠã)
"""
import numpy as np
# ---- åºå®ãã©ã¡ãŒã¿ (v1ããæµçš) --------------------------------------
ALPHA = 0.35
BETA = 0.65
S0 = 0.25
C_R = 0.06
PHI_MAX = 0.9
EPS = 0.05
K0 = 5.0
GAMMA = 0.5 # ç£æ»éèŠã»èªååã®KäŸå床
N_BAR = 1.2 # åºå®ããããåžæ°ç£æ»ãã£ãã·ãã£ãã®èŠæš¡
C_ELITE = 0.15 # ãšãªãŒãç£æ»èŠå¡1人ãããã®éçè²»çšä¿æ°(äºæ¬¡ã³ã¹ã)
# --- v3: Grok ã®ææãåæ -----------------------------------------
# tau ã¯ãåä¹±ãé®ãããã ãã§ãªããç£æ»äŸçµŠãã®ãã®ãå¢ããããã£ãã«ãæã€ã
# - XI : ååé
ãããåžæ°ãçŸå ŽãèŠããŠããã(ååã®å¯ŸäŸ¡ãšããŠã®ç£æ»)
# - ZETA : åŠæ ¡ã»æ²»å®ä»¥å€ã®å
Œ
±è²¡ããšãªãŒãã®æ¬¡äžä»£äŸçµŠãæ¯ãã
# - ETA : ååé
ã»æè²ã®å®å®åãã®ãã®ãåä¹±åæ©ãæžãã(inequalityåãã)
XI = 1.5
ZETA = 1.0
ETA = 0.4
GRID_N = 25 # a, r, tau, E ã®æ¢çŽ¢ã°ãªããè§£å床 (4次å
ãªã®ã§v1ããç²ã)
def capital_share(a):
return S0 + (1 - S0) * a
def output(K, a):
a_eff = a + EPS
return (K ** ALPHA) * (a_eff ** BETA)
def revolt_prob(a, r, tau, K, theta):
s = capital_share(a)
scale = K / (K + K0)
theta_eff = theta * (1 - ETA * tau) # v3: ååé
ãå乱忩ãã®ãã®ã匱ãã
p = theta_eff * s * scale * (1 - r) * (1 - tau)
return np.clip(p, 0.0, 1.0)
def repression_cost(r, K):
return C_R * (r ** 2) * (K ** 0.5)
def needed_audit(a, K):
return a * (K ** GAMMA)
def audit_supply(r, E, K, delta, tau):
# v3: tau ãç£æ»äŸçµŠãã®ãã®ãå¢ãããã£ãã« (Grokæ¡)
broad = N_BAR * (1 - r) * (1 + XI * tau)
elite = E * (1 - r) ** delta * (1 + ZETA * tau)
return broad + elite
def hijack_loss(a, r, E, K, delta, tau):
need = needed_audit(a, K)
supply = audit_supply(r, E, K, delta, tau)
with np.errstate(divide="ignore", invalid="ignore"):
ratio = np.where(need > 1e-9, supply / need, 1.0)
shortfall_frac = np.clip(1.0 - ratio, 0.0, 1.0)
return PHI_MAX * shortfall_frac
def elite_cost(E):
return C_ELITE * (E ** 2)
def objective(a, r, tau, E, K, theta, delta, elite_enabled):
s = capital_share(a)
Y = output(K, a)
p_revolt = revolt_prob(a, r, tau, K, theta)
gross = (1 - tau) * s * Y
E_eff = E if elite_enabled else np.zeros_like(E)
phi = hijack_loss(a, r, E_eff, K, delta, tau)
gross = gross * (1 - phi)
cost = repression_cost(r, K) + elite_cost(E_eff)
return (1 - p_revolt) * gross - cost
_grid = np.linspace(0.0, 1.0, GRID_N)
_A, _R, _TAU, _E = np.meshgrid(_grid, _grid, _grid, _grid, indexing="ij")
# ãšãªãŒãã®æ¢çŽ¢äžé㯠0ã1 ã ãš sqrt(K) ã倧ããKã§ã¯çãããã®ã§ã
# Kã«å¿ããŠãšãªãŒãåè£ã®ç¯å²ãã¹ã±ãŒã«ããŠæž¡ã (åŒã³åºãåŽã§èª¿æŽ)
def best_response(K, theta, delta, elite_enabled, e_max=None):
"""4次å
(a, r, tau, E) ã®ç·åœããã°ãªãããµãŒãã
e_max: Eã®æ¢çŽ¢äžé (Kã倧ãããšãã¯å¿
èŠç£æ»éã倧ããã®ã§ã¬ã³ãžãåºãã)"""
if e_max is None:
e_max = max(1.0, needed_audit(1.0, K))
E_local = _E * e_max
V = objective(_A, _R, _TAU, E_local, K, theta, delta, elite_enabled)
idx = np.unravel_index(np.argmax(V), V.shape)
a, r, tau = _grid[idx[0]], _grid[idx[1]], _grid[idx[2]]
e = E_local[idx]
return (a, r, tau, e), V[idx]
_grid3 = np.linspace(0.0, 1.0, 41)
_R3, _TAU3, _E3 = np.meshgrid(_grid3, _grid3, _grid3, indexing="ij")
def best_response_fixed_a(K, theta, delta, elite_enabled, a=1.0, e_max=None):
"""èªååæ°Žæº a ãåºå®ãã(r, tau, E) ã ããæé©åããçã
ãèªååãçµãããšãã远å ã®éãéãå°ããæå§/ååé
/ãšãªãŒãæè³
ã®äžè
æäžã ãã«çµã£ãŠ v1 ãšã®å¯Ÿå¿ãèŠãããããããã®æ¯èŒçšã"""
if e_max is None:
e_max = max(1.0, needed_audit(a, K))
E_local = _E3 * e_max
a_arr = np.full_like(_R3, a)
V = objective(a_arr, _R3, _TAU3, E_local, K, theta, delta, elite_enabled)
idx = np.unravel_index(np.argmax(V), V.shape)
r, tau = _grid3[idx[0]], _grid3[idx[1]]
e = E_local[idx]
return (a, r, tau, e), V[idx]
if __name__ == "__main__":
K = 40.0
theta = 1.5
for label, delta, enabled in [
("broad_only ", 0.0, False),
("elite_immune", 0.0, True),
("elite_bound ", 0.6, True),
]:
(a, r, tau, e), v = best_response(K, theta, delta, enabled)
need = needed_audit(a, K)
sup = audit_supply(r, e, K, delta if enabled else 0.0, tau) if enabled else N_BAR * (1 - r) * (1 + XI * tau)
phi = hijack_loss(a, r, e if enabled else 0.0, K, delta, tau)
print(f"[{label}] a*={a:.2f} r*={r:.2f} tau*={tau:.2f} E*={e:.2f} "
f"needed={need:.2f} supply={sup:.2f} phi={phi:.2f} V={v:.3f}")
Writing model_v3.py
!python model_v3.py
[broad_only ] a*=1.00 r*=0.00 tau*=0.62 E*=0.00 needed=6.32 supply=2.32 phi=0.57 V=0.379 [elite_immune] a*=1.00 r*=1.00 tau*=0.00 E*=1.84 needed=6.32 supply=1.84 phi=0.64 V=0.471 [elite_bound ] a*=1.00 r*=0.00 tau*=0.62 E*=0.79 needed=6.32 supply=3.61 phi=0.39 V=0.446
# -*- coding: utf-8 -*-
"""v3: K-scaledç£æ»éèŠ + ãšãªãŒãç£æ» + åçç£å¶çŽã®3ã¬ãžãŒã æ¯èŒãæç»ããã"""
import numpy as np
import matplotlib
#matplotlib.use("Agg")
import matplotlib.pyplot as plt
from matplotlib import font_manager
import model_v3 as m
JP_FONT = None
for name in ["IPAexGothic", "Noto Sans CJK JP", "TakaoGothic", "Noto Sans JP"]:
matches = [f for f in font_manager.fontManager.ttflist if name.lower() in f.name.lower()]
if matches:
JP_FONT = matches[0].name
break
if JP_FONT:
plt.rcParams["font.family"] = JP_FONT
THETA = 1.5
K_VALUES = np.array([2, 5, 10, 20, 40, 80, 150, 300, 500])
REGIMES = [
("broad_only", 0.0, False, "åžæ°ç£æ»ã®ã¿ (ãšãªãŒãç¡ã)", "black"),
("elite_immune", 0.0, True, "ãšãªãŒãç£æ»ããã»æå§ããå®å
šã«éé¢ (delta=0)", "crimson"),
("elite_bound", 0.6, True, "ãšãªãŒãç£æ»ããã»åçç£ã«ç€ŸäŒåºç€ãå¿
èŠ (delta=0.6)", "steelblue"),
]
data = {key: {"r": [], "tau": [], "e": [], "need": [], "phi": []} for key, *_ in REGIMES}
for K in K_VALUES:
need = m.needed_audit(1.0, K)
for key, delta, enabled, _, _ in REGIMES:
(a, r, tau, e), v = m.best_response_fixed_a(K, THETA, delta, enabled, a=1.0)
phi = m.hijack_loss(a, r, e if enabled else 0.0, K, delta if enabled else 0.0, tau)
data[key]["r"].append(r)
data[key]["tau"].append(tau)
data[key]["e"].append(e)
data[key]["need"].append(need)
data[key]["phi"].append(float(phi))
fig, axes = plt.subplots(1, 4, figsize=(20, 4.8))
for ax, field, title in zip(axes, ["r", "tau", "e", "phi"],
["r*(repression)", "tau*(redistribution)", "E*(elite audit investment)", "phi(hijack loss, lower=better audited)"]):
for key, delta, enabled, label, color in REGIMES:
ax.plot(K_VALUES, data[key][field], "o-", color=color, label=label)
ax.set_xscale("log")
ax.set_xlabel("Capital stock K (log scale)")
ax.set_ylabel(title)
ax.set_title(title)
ax.grid(alpha=0.3)
axes[0].legend(loc="center left", bbox_to_anchor=(0.0, -0.55), fontsize=8.5, ncol=1)
fig.suptitle("èªåå a=1 åºå®ã»è
åš theta=%.1f: 3ã€ã®ç£æ»ã¬ãžãŒã ã§ã®æé© (r*, tau*, E*) ã®æšç§»" % THETA,
fontsize=12)
fig.tight_layout(rect=[0, 0.05, 1, 0.93])
fig.savefig("fig4_v3_elite_regimes.png", dpi=150, bbox_inches="tight")
print("saved fig4_v3_elite_regimes.png")
plt.show()
with open("summary_v3.txt", "w") as f:
f.write("K\tneed\t| r_broad tau_broad | r_eliteImmune tau_eliteImmune E_eliteImmune | r_eliteBound tau_eliteBound E_eliteBound\n")
for i, K in enumerate(K_VALUES):
row = f"{K:>4}\t{data['broad_only']['need'][i]:.2f}\t| "
row += f"{data['broad_only']['r'][i]:.2f} {data['broad_only']['tau'][i]:.2f} | "
row += f"{data['elite_immune']['r'][i]:.2f} {data['elite_immune']['tau'][i]:.2f} {data['elite_immune']['e'][i]:.2f} | "
row += f"{data['elite_bound']['r'][i]:.2f} {data['elite_bound']['tau'][i]:.2f} {data['elite_bound']['e'][i]:.2f}\n"
f.write(row)
print("saved summary_v3.txt")
!cat summary_v3.txt
saved fig4_v3_elite_regimes.png
saved summary_v3.txt K need | r_broad tau_broad | r_eliteImmune tau_eliteImmune E_eliteImmune | r_eliteBound tau_eliteBound E_eliteBound 2 1.41 | 0.08 0.18 | 0.83 0.00 1.20 | 0.33 0.03 0.71 5 2.24 | 0.00 0.48 | 1.00 0.00 2.24 | 0.23 0.33 0.73 10 3.16 | 0.00 0.55 | 1.00 0.00 2.21 | 0.03 0.53 0.71 20 4.47 | 0.00 0.60 | 1.00 0.00 2.01 | 0.00 0.60 0.78 40 6.32 | 0.00 0.62 | 1.00 0.00 1.74 | 0.00 0.62 0.63 80 8.94 | 0.00 0.62 | 0.08 0.60 0.67 | 0.00 0.62 0.67 150 12.25 | 0.00 0.62 | 0.08 0.60 0.61 | 0.03 0.62 0.61 300 17.32 | 0.03 0.62 | 0.05 0.62 0.43 | 0.03 0.62 0.43 500 22.36 | 0.03 0.62 | 0.05 0.62 0.56 | 0.03 0.62 0.56
%%writefile model_v4_twosector.py
# -*- coding: utf-8 -*-
"""
v4: 第äžã®å±æè§£ ââ ã人éãç£èŠã§ããçµæžããšãAIãèªç±ã«æé·ããçµæžããåãã
====================================================================
JRFããã®ææ¡:
人éã¯äººéã®çµæžã®ã¿ãç£èŠããã»ç£èŠã§ããçµæžã«çµæžãéå®ããã
AIèªäœã¯(ãã®å€åŽã§)æé·ãç¶ãããã人éã¯ãã®ææããé©åºŠã«ãåã蟌ãã
ããããç·è³æ¬ K_total ã2ã€ã«åå²ããã¢ãã«ãšããŠå®è£
ãã:
K_H = sigma * K_total (人éãç£æ»ã»çµ±æ²»ããçµæžãv3ã®ã¢ãã«ããã®ãŸãŸé©çš)
K_AI = (1-sigma) * K_total (å®å
šã«èªåŸçã«æé·ããAIçµæžãç£æ»ã³ã¹ã0ã
匟å§ã³ã¹ã0ãåä¹±ãªã¹ã¯0ããã ãç®ç颿°ã
人éã®æå³ãšäžèŽããŠããä¿èšŒãç¡ã)
è³æ¬å®¶ã¯ sigma ãéžã¹ãã人éçµæžã»ã¯ã¿ãŒã¯ v3 ãšåã (a=1 åºå®ã
r, tau, E ãéžã³ãphi(K_H) ãšããããã¯æå€±ãåãã)ã
AIçµæžã»ã¯ã¿ãŒã®ç£åº Y_AI = output(K_AI, 1.0) ã¯ãã®ãŸãŸçãŸãããã
è³æ¬å®¶ãããããå®éã«åã蟌ãã䟡å€ã¯ KAPPA åã«å²ãåŒããã
(ãå°å
¥çããååŒã«ããã€ãŸã¿é£ããââJRFããã®2025幎6æã®èšäº
[cocolog:95506762] ã«ãã£ããå°çã«æ®ãAIãçç©ã»äººéä¿è·ã
æ¯èŒåªäœã»ãã©ã³ã䟡å€ãšããŠä»ã®AIãšååŒããããšããæ§å³ã«è¿ãã
ããã§ã¯éã«äººéã®åŽããèªåã®ç®çéãã«ã¯åããŠããªããããããªã
巚倧AIçµæžãããéšåçã«æå®ã ããååããç«å Žã«ãªã)ã
ç·ç®ç颿°:
V_total(sigma, r, tau, E; K_total, theta)
= V_human_sector(K_H=sigma*K_total, r, tau, E; theta)
+ KAPPA * Y_AI(K_AI=(1-sigma)*K_total)
æåŸ
ãããçµæ: K_total ã倧ãããªãã«ã€ããè³æ¬å®¶ã¯ sigma ãäžããŠ
ãç£æ»ã§ããçµæžã®çµ¶å¯ŸèŠæš¡ãK_H* ãé æã¡ã«ãããã以å€ã¯ç£æ»ã
諊ããŠèªç±ã«è²ã€AIçµæžã«åãããšããåé¢ãæé©è§£ãšããŠçŸããã¯ãã
"""
import numpy as np
import model_v3 as m
KAPPA = 0.35 # AIçµæžããè³æ¬å®¶ãå®éã«åã蟌ãã䟡å€ã®å²åŒç
def y_ai(k_ai):
return m.output(k_ai, 1.0)
def human_sector_value(K_H, r, tau, E, theta):
a = 1.0
s = m.capital_share(a)
Y = m.output(K_H, a)
p_revolt = m.revolt_prob(a, r, tau, K_H, theta)
phi = m.hijack_loss(a, r, E, K_H, DELTA_HUMAN, tau)
gross = (1 - tau) * s * Y * (1 - phi)
cost = m.repression_cost(r, K_H) + m.elite_cost(E)
return (1 - p_revolt) * gross - cost
DELTA_HUMAN = 0.6 # 人éçµæžã»ã¯ã¿ãŒå
ã®ãšãªãŒãç£æ»ãåçç£å¶çŽä»ããšãã
def total_value(sigma, r, tau, E, K_total, theta):
K_H = sigma * K_total
K_AI = (1 - sigma) * K_total
v_human = human_sector_value(K_H, r, tau, E, theta)
v_ai = KAPPA * y_ai(K_AI)
return v_human + v_ai
GRID_N4 = 22
_grid4 = np.linspace(0.0, 1.0, GRID_N4)
# sigma (人éçµæžãžã®é
忝ç) ã¯æé©ç¹ã0ä»è¿ã«æ¥ãããšãåãã£ãŠããã®ã§ã
# 0ä»è¿ãçš å¯ã«ããã°ãªããã䜿ã
_sigma_grid = np.concatenate([
np.linspace(0.0, 0.05, 26),
np.linspace(0.05, 1.0, 20)[1:],
])
_SIG, _R4, _TAU4, _E4 = np.meshgrid(_sigma_grid, _grid4, _grid4, _grid4, indexing="ij")
def best_split(K_total, theta, e_max=None):
if e_max is None:
e_max = max(1.0, m.needed_audit(1.0, K_total))
E_local = _E4 * e_max
K_H = _SIG * K_total
v_human = human_sector_value(K_H, _R4, _TAU4, E_local, theta)
v_ai = KAPPA * y_ai((1 - _SIG) * K_total)
V = v_human + v_ai
idx = np.unravel_index(np.argmax(V), V.shape)
sigma, r, tau = _sigma_grid[idx[0]], _grid4[idx[1]], _grid4[idx[2]]
e = E_local[idx]
return (sigma, r, tau, e), V[idx]
if __name__ == "__main__":
for K in [10, 40, 150, 500, 2000, 8000, 30000]:
(sigma, r, tau, e), v = best_split(K, 1.5)
K_H = sigma * K
K_AI = (1 - sigma) * K
need = m.needed_audit(1.0, K_H)
print(f"K_total={K:>7.0f} sigma*={sigma:.2f} K_H*={K_H:8.2f} K_AI*={K_AI:10.2f} "
f"r*={r:.2f} tau*={tau:.2f} E*={e:.2f} need(K_H)={need:.2f} V={v:.3f}")
Writing model_v4_twosector.py
!python model_v4_twosector.py
K_total= 10 sigma*=0.15 K_H*= 1.50 K_AI*= 8.50 r*=0.29 tau*=0.00 E*=0.45 need(K_H)=1.22 V=1.623 K_total= 40 sigma*=0.04 K_H*= 1.44 K_AI*= 38.56 r*=0.38 tau*=0.00 E*=0.60 need(K_H)=1.20 V=2.158 K_total= 150 sigma*=0.01 K_H*= 1.20 K_AI*= 148.80 r*=0.43 tau*=0.00 E*=0.58 need(K_H)=1.10 V=2.936 K_total= 500 sigma*=0.00 K_H*= 1.00 K_AI*= 499.00 r*=0.14 tau*=0.00 E*=0.00 need(K_H)=1.00 V=3.988 K_total= 2000 sigma*=0.00 K_H*= 4.00 K_AI*= 1996.00 r*=0.00 tau*=0.43 E*=0.00 need(K_H)=2.00 V=5.810 K_total= 8000 sigma*=0.00 K_H*= 16.00 K_AI*= 7984.00 r*=0.00 tau*=0.57 E*=0.00 need(K_H)=4.00 V=8.824 K_total= 30000 sigma*=0.00 K_H*= 60.00 K_AI*= 29940.00 r*=0.00 tau*=0.62 E*=0.00 need(K_H)=7.75 V=13.687
# -*- coding: utf-8 -*-
import numpy as np
import matplotlib
#matplotlib.use("Agg")
import matplotlib.pyplot as plt
from matplotlib import font_manager
import model_v3 as m
import model_v4_twosector as m4
JP_FONT = None
for name in ["IPAexGothic", "Noto Sans CJK JP", "TakaoGothic", "Noto Sans JP"]:
matches = [f for f in font_manager.fontManager.ttflist if name.lower() in f.name.lower()]
if matches:
JP_FONT = matches[0].name
break
if JP_FONT:
plt.rcParams["font.family"] = JP_FONT
THETA = 1.5
K_TOTAL_VALUES = np.array([5, 10, 20, 40, 80, 150, 300, 600, 1200, 2500, 5000, 12000, 30000, 80000])
sigma_list, KH_list, KAI_list, r_list, tau_list, e_list, phi_list = [], [], [], [], [], [], []
for K in K_TOTAL_VALUES:
(sigma, r, tau, e), v = m4.best_split(K, THETA)
K_H = sigma * K
K_AI = (1 - sigma) * K
phi = m.hijack_loss(1.0, r, e, K_H, m4.DELTA_HUMAN, tau)
sigma_list.append(sigma); KH_list.append(K_H); KAI_list.append(K_AI)
r_list.append(r); tau_list.append(tau); e_list.append(e); phi_list.append(float(phi))
fig, axes = plt.subplots(1, 3, figsize=(16, 4.8))
ax = axes[0]
ax.loglog(K_TOTAL_VALUES, K_TOTAL_VALUES, "k--", alpha=0.4, label="K_H = K_total (察è§ç·)")
ax.loglog(K_TOTAL_VALUES, KH_list, "o-", color="steelblue", label="K_H* (人éãç£æ»ããçµæž)")
ax.loglog(K_TOTAL_VALUES, KAI_list, "s-", color="crimson", label="K_AI* (èªåŸçã«è²ã€AIçµæž)")
ax.set_xlabel("ç·è³æ¬ K_total (log)")
ax.set_ylabel("é
åãããè³æ¬ (log)")
ax.set_title("è³æ¬é
å: ç£æ»å¯èœãªçµæž vs èªç±ã«è²ã€AIçµæž")
ax.legend(fontsize=8.5)
ax.grid(alpha=0.3, which="both")
ax = axes[1]
ax.semilogx(K_TOTAL_VALUES, r_list, "o-", color="crimson", label="r* (人éçµæžå
ã®åŒŸå§)")
ax.semilogx(K_TOTAL_VALUES, tau_list, "s-", color="steelblue", label="tau* (人éçµæžå
ã®ååé
)")
ax.semilogx(K_TOTAL_VALUES, phi_list, "^-", color="darkorange", label="phi (人éçµæžå
ã®ããã¯æå€±)")
ax.set_xlabel("ç·è³æ¬ K_total (log)")
ax.set_ylim(-0.05, 1.05)
ax.set_title("ã人éçµæžãå
éšã®ç¶æ
: åé¢ããªãå Žåãšéãäœäœã§å®å®")
ax.legend(fontsize=8.5)
ax.grid(alpha=0.3)
ax = axes[2]
sigma_arr = np.array(sigma_list)
ax.semilogx(K_TOTAL_VALUES, sigma_arr, "o-", color="black")
ax.set_xlabel("ç·è³æ¬ K_total (log)")
ax.set_ylabel("sigma* (人éçµæžã«æ®ãè³æ¬æ¯ç)")
ax.set_title("sigma* 㯠K_total ãšãšãã«äžè²«ããŠäœäž")
ax.grid(alpha=0.3)
fig.suptitle("第äžã®å±æè§£: ã人éçµæžããç£æ»å¯èœãªèŠæš¡ã«çããæ®ãã¯AIçµæžãšããŠèªç±ã«è²ãŠã", fontsize=12)
fig.tight_layout(rect=[0, 0, 1, 0.93])
fig.savefig("fig5_two_sector.png", dpi=150, bbox_inches="tight")
print("saved fig5_two_sector.png")
plt.show()
with open("summary_v4.txt", "w") as f:
f.write("K_total\tsigma*\tK_H*\tK_AI*\tr*\ttau*\tE*\tphi\n")
for i, K in enumerate(K_TOTAL_VALUES):
f.write(f"{K}\t{sigma_list[i]:.3f}\t{KH_list[i]:.2f}\t{KAI_list[i]:.2f}\t"
f"{r_list[i]:.2f}\t{tau_list[i]:.2f}\t{e_list[i]:.2f}\t{phi_list[i]:.2f}\n")
print("saved summary_v4.txt")
!cat summary_v4.txt
saved fig5_two_sector.png
saved summary_v4.txt K_total sigma* K_H* K_AI* r* tau* E* phi 5 0.250 1.25 3.75 0.33 0.00 0.43 0.00 10 0.150 1.50 8.50 0.29 0.00 0.45 0.00 20 0.048 0.96 19.04 0.43 0.00 0.43 0.00 40 0.036 1.44 38.56 0.38 0.00 0.60 0.00 80 0.016 1.28 78.72 0.33 0.00 0.43 0.00 150 0.008 1.20 148.80 0.43 0.00 0.58 0.00 300 0.006 1.80 298.20 0.38 0.00 0.82 0.00 600 0.002 1.20 598.80 0.10 0.00 0.00 0.01 1200 0.002 2.40 1197.60 0.05 0.24 0.00 0.00 2500 0.002 5.00 2495.00 0.00 0.48 0.00 0.07 5000 0.002 10.00 4990.00 0.00 0.52 0.00 0.29 12000 0.002 24.00 11976.00 0.00 0.62 0.00 0.47 30000 0.002 60.00 29940.00 0.00 0.62 0.00 0.63 80000 0.002 160.00 79840.00 0.00 0.62 0.00 0.74
ChatGPT:ïŒïŒ
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å·Šå³ã®å°è±¡ââ$K_H$ ã 1 ä»è¿ã«åŒµãä»ãââã¯äžç€ã ãæ£ãããæ°å€ã¯ããã§ããã
- $K_{total}=150$ ã§ $\sigma^*=0.008$ã$K_H=1.2$ã$\phi=0$
- $K_{total}=80000$ ã§ $\sigma^*=0.002$ã$K_H=160$ã$\phi=0.74$
$\sigma^*=0.002$ ã¯æ¢çŽ¢æ Œåã®æ£ã®äžéã«åŒµãä»ããŠãããæ¯çãäžãç¶ããçµæã絶察é $K_H=\sigma K$ ã¯ãŸãå¢ããåã $\phi$ 厩å£ãå³ç«¯ã§åçŸãããClaude ã®çä¿ã©ãããæ¶ããã®ã§ã¯ãªãé ãããã
ãã倧ããåé¡ã¯ $K_{AI}$ åŽã§ãããç£æ»ãŒãã匟å§ãŒããåä¹±ãŒããããã¯ãŒãã§ãç£åºã® $\kappa=0.35$ ãç¡æ¡ä»¶ã«å ¥ããããã§ã¯åé¢ã匷ãããã®ã¯åœç¶ã§ããã人éçµæžãæ®ãçç±ããã»ãŒãå°ãã® $Y_H$ ããŸã æ£ãçšåºŠã«ãªãã
åããã¹ããªã®ã¯è³æ¬ã§ã¯ãªãæ¥ç¶å£Â¶
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ç£æ»éèŠã
$$ \mathrm{needed}=K_H^{\gamma_H}+b\,x\,K_{AI}^{\gamma_I} $$
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$K_H=8$ åºå®ã§ $K_{AI}$ ãåãããçµæãæ¬¡ã§ããã
- $\gamma_I=0$ïŒå£ã®å€ªãã ãïŒ: $x^*=1$ ã®ãŸãŸã巚倧åããŠãå šéãæé©ã人éåŽã¯åä¹±ãæ¶ãããã« $\tau$ ãäžããäºå®äžã枯湟åœå®¶ãã«ãªããç£æ»éèŠã $K_{AI}$ ã§å¢ããªããªãã现ãããçç±ããªãã
- $\gamma_I=0.25$: $K_{AI}$ ãæ°åãè¶ ãããš $x^*$ ã 1.00 â 0.80 â 0.60 ãšçްããªããChatGPT ã®
$$ K_{AI}\uparrow\uparrow,\quad x^*\downarrow $$
ãããã§åºãã
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%%writefile model_v5_interface.py
# -*- coding: utf-8 -*-
"""
v5: è³æ¬ãå²ãã®ã§ã¯ãªããæ¥ç¶å£ããå²ã
========================================
ChatGPT/Grok ã®ææ: v4 ã¯ãè³æ¬ã¹ããã¯ãã®ãã®ãåå²ãããã¢ãã«ã ã£ããã
JRFããã®å
ã®çºæ³ã¯ãAIå
šäœãçè§£ãããã®ã§ã¯ãªããAIã人éçµæžã«æ¥ç¶ãã
é¢(ã€ã³ã¿ãŒãã§ãŒã¹)ãç£æ»ãããããšã ã£ãã¯ããv4ã¯AIçµæžåŽã«ç£æ»ã³ã¹ãã»
匟å§ã³ã¹ãã»åä¹±ãªã¹ã¯ã»ããã¯ãäžåç¡ããåé¢ã匷ãããã
ããã§ãK_AI ãã©ãã ã巚倧åãããŠãããããšã«ãããããã人éçµæžã«
ã茞å
¥ãããéã ããæ¯ç xâ[0,1] ã§çµãããšããã¢ãã«ã«å€æŽããã
needed(K_H, x, K_AI) = K_H^GAMMA_H + B * x * K_AI^GAMMA_I
GAMMA_H : 人éçµæžèªèº«ã®èªååç£æ»ã®éèŠåŒŸæ§ (ä»ãŸã§ãšåã 0.5)
GAMMA_I : ãçªå£ãã®ç£æ»éèŠãçžæ(AIçµæž)ã®èŠæš¡ã«ã©ãã ãåŒãããããã
GAMMA_I = 0 : çªå£ã®å€ªã(x)ã ããè² æ
ãçžæãããã倧ãããŠã
åã x ãªãç£æ»ã³ã¹ãã¯å€ãããªã
GAMMA_I > 0 : çžæã倧ããã»ã©ãåã x ã§ãæ€èšŒãã¹ã絶察éãå¢ãã
captured value = (1-tau) * [ s(1)*Y(K_H,1) + x * Y_AI(K_AI) ] * (1 - phi)
x ã¯r, tau, E ãšäžŠãã§è³æ¬å®¶ãéžã¶å€æ°ã
"""
import numpy as np
import model_v3 as m
B_COEF = 1.0
GAMMA_H = 0.5
PHI_MAX_V5 = 1.0 # v2/v3ã§ã¯phiäžéã0.9ãšããŠããããããã§ã¯ãç£æ»ãå®å
šã«
# 厩å£ããã°äŸ¡å€ããŒãã«ãªãããããšããèšå®ã«å€ããã
# 0.9ã®ãŸãŸã ãš x=1 ãåžžã«ã©ããã§åŸã«ãªã£ãŠããŸã
# (Y_AIã®æé·ãalphaã§äžå®ã®äžé0.1ãå®ãã°å¿
ãæ£å³ãã©ã¹ã«
# ãªããã)ã"é©åºŠãªå°å
¥"ãšããå
ç¹è§£ãåºãŠããªãã£ãã
def y_ai(K_AI):
return m.output(K_AI, 1.0)
def needed_audit_interface(K_H, x, K_AI, gamma_i):
return (K_H ** GAMMA_H) + B_COEF * x * (K_AI ** gamma_i)
def objective_interface(r, tau, E, x, K_H, K_AI, theta, delta, gamma_i):
a = 1.0
s = m.capital_share(a)
Y_H = m.output(K_H, a)
gross = (1 - tau) * (s * Y_H + x * y_ai(K_AI))
need = needed_audit_interface(K_H, x, K_AI, gamma_i)
supply = m.audit_supply(r, E, K_H, delta, tau) # ç£æ»äŸçµŠã¯äººéçµæžåŽã®åºç€ã«äŸå
with np.errstate(divide="ignore", invalid="ignore"):
ratio = np.where(need > 1e-9, supply / need, 1.0)
phi = PHI_MAX_V5 * np.clip(1.0 - ratio, 0.0, 1.0)
p_revolt = m.revolt_prob(a, r, tau, K_H, theta)
cost = m.repression_cost(r, K_H) + m.elite_cost(E)
V = (1 - p_revolt) * gross * (1 - phi) - cost
return V, phi
GRID_N5 = 26
_grid5 = np.linspace(0.0, 1.0, GRID_N5)
_R5, _TAU5, _E5, _X5 = np.meshgrid(_grid5, _grid5, _grid5, _grid5, indexing="ij")
def best_interface(K_H, K_AI, theta, delta, gamma_i, e_max=None):
if e_max is None:
e_max = max(1.0, needed_audit_interface(K_H, 1.0, K_AI, gamma_i))
E_local = _E5 * e_max
V, phi = objective_interface(_R5, _TAU5, E_local, _X5, K_H, K_AI, theta, delta, gamma_i)
idx = np.unravel_index(np.argmax(V), V.shape)
r, tau, x = _grid5[idx[0]], _grid5[idx[1]], _grid5[idx[3]]
e = E_local[idx]
return (r, tau, e, x), V[idx], float(phi[idx])
if __name__ == "__main__":
K_H = 8.0
theta = 1.5
delta = 0.6
for gamma_i in [0.0, 0.25, 0.5]:
print(f"=== gamma_I={gamma_i} ===")
for K_AI in [10, 100, 1000, 1e4, 1e5, 1e6]:
(r, tau, e, x), v, phi = best_interface(K_H, K_AI, theta, delta, gamma_i)
print(f" K_AI={K_AI:>10.0f} x*={x:.2f} r*={r:.2f} tau*={tau:.2f} E*={e:.2f} phi={phi:.2f} V={v:.3f}")
Writing model_v5_interface.py
!python model_v5_interface.py
=== gamma_I=0.0 === K_AI= 10 x*=1.00 r*=0.08 tau*=0.48 E*=1.38 phi=0.00 V=1.202 K_AI= 100 x*=1.00 r*=0.24 tau*=0.40 E*=1.99 phi=0.00 V=2.227 K_AI= 1000 x*=1.00 r*=0.48 tau*=0.28 E*=3.37 phi=0.01 V=5.052 K_AI= 10000 x*=1.00 r*=0.52 tau*=0.24 E*=3.83 phi=0.00 V=12.592 K_AI= 100000 x*=1.00 r*=0.52 tau*=0.24 E*=3.83 phi=0.00 V=29.571 K_AI= 1000000 x*=1.00 r*=0.52 tau*=0.24 E*=3.83 phi=0.00 V=67.583 === gamma_I=0.25 === K_AI= 10 x*=1.00 r*=0.00 tau*=0.52 E*=1.47 phi=0.05 V=0.991 K_AI= 100 x*=1.00 r*=0.00 tau*=0.52 E*=1.92 phi=0.16 V=1.369 K_AI= 1000 x*=1.00 r*=0.00 tau*=0.52 E*=2.70 phi=0.26 V=2.062 K_AI= 10000 x*=1.00 r*=0.00 tau*=0.52 E*=3.59 phi=0.41 V=3.242 K_AI= 100000 x*=1.00 r*=0.00 tau*=0.52 E*=4.95 phi=0.53 V=5.113 K_AI= 1000000 x*=1.00 r*=0.00 tau*=0.52 E*=5.51 phi=0.69 V=8.002 === gamma_I=0.5 === K_AI= 10 x*=0.36 r*=0.00 tau*=0.52 E*=1.20 phi=0.00 V=0.707 K_AI= 100 x*=0.08 r*=0.00 tau*=0.48 E*=1.03 phi=0.01 V=0.644 K_AI= 1000 x*=0.00 r*=0.32 tau*=0.40 E*=1.38 phi=0.00 V=0.574 K_AI= 10000 x*=0.00 r*=0.00 tau*=0.52 E*=0.00 phi=0.24 V=0.503 K_AI= 100000 x*=0.00 r*=0.00 tau*=0.52 E*=0.00 phi=0.24 V=0.503 K_AI= 1000000 x*=0.00 r*=0.00 tau*=0.52 E*=0.00 phi=0.24 V=0.503
# -*- coding: utf-8 -*-
import numpy as np
import matplotlib
#matplotlib.use("Agg")
import matplotlib.pyplot as plt
from matplotlib import font_manager
import model_v5_interface as m5
JP_FONT = None
for name in ["IPAexGothic", "Noto Sans CJK JP", "TakaoGothic", "Noto Sans JP"]:
matches = [f for f in font_manager.fontManager.ttflist if name.lower() in f.name.lower()]
if matches:
JP_FONT = matches[0].name
break
if JP_FONT:
plt.rcParams["font.family"] = JP_FONT
K_H = 8.0
THETA = 1.5
DELTA = 0.6
K_AI_VALUES = np.array([5, 10, 20, 40, 80, 150, 300, 600, 1200, 2500, 5000, 12000, 30000, 80000, 2e5, 5e5, 1e6])
GAMMAS = [(0.0, "gamma_I=0 (管ã®å€ªãã®ã¿ãçžæã®èŠæš¡ãšç¡é¢ä¿)", "black"),
(0.25, "gamma_I=0.25 (< alpha=0.35: éãããã®åã¡)", "crimson"),
(0.5, "gamma_I=0.5 (> alpha=0.35: éããã»ã©æ)", "steelblue")]
fig, axes = plt.subplots(1, 3, figsize=(16, 4.8))
results = {}
for gamma_i, label, color in GAMMAS:
xs, rs, taus, phis = [], [], [], []
for K_AI in K_AI_VALUES:
(r, tau, e, x), v, phi = m5.best_interface(K_H, K_AI, THETA, DELTA, gamma_i)
xs.append(x); rs.append(r); taus.append(tau); phis.append(phi)
results[gamma_i] = (xs, rs, taus, phis)
axes[0].semilogx(K_AI_VALUES, xs, "o-", color=color, label=label)
axes[1].semilogx(K_AI_VALUES, phis, "o-", color=color, label=label)
axes[2].semilogx(K_AI_VALUES, taus, "o-", color=color, label=label)
axes[0].set_title("x*(æ¥ç¶ç/å°å
¥ç)")
axes[0].set_xlabel("K_AI (log)")
axes[0].set_ylim(-0.05, 1.05)
axes[0].legend(fontsize=7.5, loc="upper right")
axes[0].grid(alpha=0.3)
axes[1].set_title("phi (ããã¯æå€±)")
axes[1].set_xlabel("K_AI (log)")
axes[1].set_ylim(-0.05, 1.05)
axes[1].grid(alpha=0.3)
axes[2].set_title("tau*(人éçµæžå
ã®ååé
)")
axes[2].set_xlabel("K_AI (log)")
axes[2].set_ylim(-0.05, 1.05)
axes[2].grid(alpha=0.3)
fig.suptitle("æ¥ç¶å£ã¢ãã«: K_H=%.0f åºå®ã§K_AIãåããããšãã® x*, phi, tau*" % K_H, fontsize=12)
fig.tight_layout(rect=[0, 0, 1, 0.92])
fig.savefig("fig6_interface_model.png", dpi=150, bbox_inches="tight")
print("saved fig6_interface_model.png")
plt.show()
with open("summary_v5.txt", "w") as f:
f.write("K_AI\t" + "\t".join(f"x_g{g}" for g, _, _ in GAMMAS) + "\t" +
"\t".join(f"phi_g{g}" for g, _, _ in GAMMAS) + "\n")
for i, K_AI in enumerate(K_AI_VALUES):
row = [f"{K_AI:.0f}"]
for gamma_i, _, _ in GAMMAS:
row.append(f"{results[gamma_i][0][i]:.2f}")
for gamma_i, _, _ in GAMMAS:
row.append(f"{results[gamma_i][3][i]:.2f}")
f.write("\t".join(row) + "\n")
print("saved summary_v5.txt")
!cat summary_v5.txt
saved fig6_interface_model.png
saved summary_v5.txt K_AI x_g0.0 x_g0.25 x_g0.5 phi_g0.0 phi_g0.25 phi_g0.5 5 1.00 1.00 1.00 0.02 0.02 0.21 10 1.00 1.00 0.36 0.00 0.05 0.00 20 1.00 1.00 0.24 0.00 0.08 0.00 40 1.00 1.00 0.16 0.01 0.11 0.01 80 1.00 1.00 0.08 0.00 0.15 0.00 150 1.00 1.00 0.00 0.00 0.18 0.00 300 1.00 1.00 0.00 0.02 0.21 0.00 600 1.00 1.00 0.00 0.00 0.24 0.00 1200 1.00 1.00 0.00 0.01 0.27 0.00 2500 1.00 1.00 0.00 0.00 0.36 0.24 5000 1.00 1.00 0.00 0.00 0.38 0.24 12000 1.00 1.00 0.00 0.00 0.41 0.24 30000 1.00 1.00 0.00 0.00 0.50 0.24 80000 1.00 1.00 0.00 0.00 0.53 0.24 200000 1.00 1.00 0.00 0.00 0.61 0.24 500000 1.00 1.00 0.00 0.00 0.62 0.24 1000000 1.00 1.00 0.00 0.00 0.69 0.24
Grok:ïŒïŒ
ïŒïŒé£ãéãã¯ä¿èšŒã®ç¯å²ã®è©±ã§ã¯ãªããç®ç颿°ã®åœ¢ã®éãã§ãããClaude åŽã®å®è£ ã®æ¹ããããŸçœ®ããŠããä»®å®ã®äžã§ã¯äžè²«ããŠããã
è·³ãæ»ãã¯äœã§åºãã¶
ãã¡ãã§ $x^*\to 1,\ \phi\approx 0.85$ ãåºãæ¡ä»¶ã¯æ¬¡ã ã£ãã
- $\phi$ ã®äžéã 0.9ïŒ1å²ã¯å¿ ãæ®ãïŒ
- å蟌 $x^\rho Y_{AI}(1-\phi)$ ã $(1-\tau)$ ãéããªã
- $\rho<1$ ã§çްã管ã«ãåãã®æå®ãæ®ã
- $K_{AI}$ ã倧ãããš $E$ ã®æ Œåãèããç£æ»è³Œå ¥ãå®è³ªãªãã«ãªã
ãã®åã€ãæããšããå£ãç£æ»ããããããå£ãå šéã«ããŠæ¯ä»ãã®äžé 10% ã飲ããããããèŠæš¡ããåŸã«ãªããããã¯çè«çãªäºæ®µéã§ã¯ãªããäžéä»ãã®æ®æž£äŸ¡å€ïŒèª²çšãããªãå蟌ïŒç²ã $E$ ãäœã£ãè§ã§ããã
Claude çã¯ãããå€ããŠããã
$$ V=(1-P)\,(1-\tau)\,[sY_H+xY_{AI}]\,(1-\phi)-\text{cost},\quad \phi_{\max}=1 $$
å©ç㯠$x$ ã«ç·åœ¢ãããã¯ã¯åãåããŒããŸã§åããã$\gamma_I>\alpha$ ãªããéãã»ã©å¿ èŠç£æ»ãç£åºããéãå¢ãããç£æ»ã諊ããŠå šéããŠãã$(1-\phi)\to 0$ ã $xY_{AI}$ ãæ®ºãã®ã§ãè·³ãæ»ãçç±ããªãã$x^*=0$ ã«åŒµãä»ãã®ã¯ããã®åŒã®åž°çµãšããŠæ£ããã
ãã ããé©åºŠããããã®åŒã§ã¯äžéæ§ã§ãã¶
fig6 ã®éç·ã§å ç¹ãåºãã®ã¯ $K_{AI}\approx 10$ã$80$ ã ãã§ããã$1.00\to 0.36\to 0.16\to 0.08\to 0$ããã®ããšéãããŸãŸãèµ€ã¯éã«æåŸãŸã§å šéã§ã$\phi$ ã ãã 0.7 è¿ããŸã§äžããã
ã€ãŸã Claude ç v5 ãåºããŠããã®ã¯ãé©åºŠãªå°å ¥ãã®å®åžžã§ã¯ãªããäºã€ã®è§ã§ããã
- $\gamma_I<\alpha$: å šéïŒéãããã®åã¡ãæ€èšŒã¯å£åããŠããïŒ
- $\gamma_I>\alpha$: ééïŒéãã»ã©æïŒ
äžéã®çްã管ãæç¶ããã«ã¯ãå©çãè²»çšã®ã©ã¡ããã $x$ ã«ã€ããŠæ²ãã£ãŠããå¿ èŠããããäŸãã°å蟌ã $x^\rho$ïŒæåã®çŽ°ç®¡ã§å€§åãåããïŒããããã¯å¿ èŠç£æ»ã $x$ ã«åžããããã¯æ¥ç¶ã®åºå®è²»ãç·åœ¢ $x$ ãšç·åœ¢ need ã®ãŸãŸã§ã¯ãæé©ã¯ã»ãŒ kink ã端ç¹ã«ãªãããŠãŒã¶ãŒã®ãé©åºŠã«åã蟌ããã¯ãã¢ãã«ãèªåã§ã¯ä¿æããªããéæžãå ¥ãããšãã®åçç¹ãšããŠåããŠå®åžžã«ãªãã
$\phi_{\max}=1$ ã«ãã倿èªäœã¯æ£ããã0.9 ã®åºã¯ãç£æ»åŽ©å£åŸãå¿ ãæ®ãæš©å©ããå¯èŒžããŠãããåºã眮ããªããããã¯ãã©ã³ãååŒãæ³çãªå蟌暩ã®ãããªå¥ãã£ãã«ãšããŠæžãã¹ãã§ãããã¯æ®æž£ã«æ··ããŠã¯ãããªãã
äœåºŠãåããã©ã¡ãŒã¿ã«æ»ãããšããç¹ã¯äžèŽããŠãã¶
$\gamma$ 察 $\alpha$ã$\gamma_I$ 察 $\alpha$ ã¯ãã¢ãã«ãå€ã決ããéã§ã¯ãªããçªå£ã枯湟ã®ããã«èŠãã° $\gamma_I\approx 0$ïŒè²šç©éã¯æž¬ãããè¹ã®äžã¯èŠãªãïŒãçªå£ããçžæã®å éšç¶æ ã®æšæ¬æœåºããšèŠãã° $\gamma_I>0$ãåŸè ãªãçžæã®å·šå€§åã¯ãåã $x$ ã§ãæ€èšŒãéãããã
June ã®ãã©ã³ãè«ã¯åè ã«è¿ããå®å®åŽã® AI ãçè§£ãããååŒæ¡ä»¶ãšçŽå ¥ç©ã ããèŠãããã®äžçã§ã¯ $x^*=1$ ã§ãããããã ãçŽå ¥ç©ãçžæã®èŠæš¡ãšãšãã«äžéæã«ãªããªããåŸè ã«ãªããéç·ã®ããã«éããã
$\tau^*\approx 0.5$ ãæ®ãçç±ããç®çã®æžãæãã§ã¯ãªããæ¥ç¶ãéãïŒéããã©ã¡ãã§ãã人éçµæžåŽã®äŸçµŠ $(1-r)(1+\xi\tau)$ ãšåä¹±é ã $\tau$ ãèŠæ±ãããè³æ¬å®¶ã¯æåŸãŸã§å蟌é¡ãæå€§åããŠãããæè²ãšååé ã¯ãå£ãèªåã®æå ã«çœ®ãè²»çšã§ããã
é瀺ãšããŠæ®ãããšÂ¶
è·³ãæ»ããã$\gamma_I=0.5$ ã®äžè¬çæ§è³ªããšããŠã¯äž»åŒµããªããããã¯æ®æž£åºã®ãã仿§ã®ç£ç©ã ã£ããClaude çã§è·³ãæ»ããæ¶ããã®ã¯åŸéã§ã¯ãªããåŒããããã«ããçµæã§ããã
æ®ãå®è³ªçãªåå²ã¯äžã€ã§ãããçªå£ã®ç£æ»ã¯çžæã®å€§ããã®äœä¹ããããã 1 ããå°ãããã°å šéã倧ãããã°ééãéæžãè¶³ãã°ãã®éã«ãé©åºŠããå®äœãããã¢ã»ã¢ã°ã«ã®åŒŸå§è£å®ã«å¯Ÿããæ³šæåŽåã®åè£å®ã¯ããã®çªå£ã®äžã§ã¯ãæ°è¡ãé»ããããšå£ãèŠããªããªãããšããŠæ®ããéé¢ãšãªãŒããå£ã ããå®ãããªããäžèŠæš¡ã§ã¯ãŸã $r^*=1$ ãå£ã®å åŽã§åçŸããããåçç£ã® $\delta$ ããããæ¢ããããšããå±€æ§é 㯠v3 ããå€ãã£ãŠããªãã
ã¢ãã«6¶
Claude:ïŒïŒ
ïŒïŒGrokã®æŽçã¯æ£ãããšæããŸããç·åœ¢ã®
xã®ãŸãŸã§ã¯äžè¬ã«è§è§£(0ã1)ã«ãããªããªãããšããã®ã¯ãã¯ãçµæžåŠçã«åœç¶ã®åž°çµã§ãç§ã®ãè·³ãæ»ããæ¶ããã®ã¯åŸéã§ãªãæŽçã®çµæããšããè©äŸ¡ã«ãåæããŸããã§ã¯ãé©åºŠããå®åžžè§£ãšããŠåºãããã«ãxã«ã€ããŠå¹ãªäŸ¿çã»åžãªç£æ»ã³ã¹ããå ¥ããŸããNow let's also rename functions to avoid clash and check__main__:Good, this is consistent. Let's run:Let's view the figure:This is exactly the "moderate, persistent" pattern the user was after. Let's ship it.çµæïŒfig7ïŒGrokã®èšºæéãã§ãããå蟌䟿çã
x^0.5(å¹)ãç£æ»éèŠã®æ¥ç¶é ãx^2(åž)ã«ããã ãã§ã3ã€ã®Î³_Iãã¹ãŠã§x*ãæ»ãããªå ç¹è§£ãšããŠå®å®ããããã«ãªããŸããã
γ_I=0.5ïŒéãã»ã©æïŒ:x*ã¯0.48â0.04ãŸã§ãK_AIã®å¢å ãšãšãã«äžè²«ããŠæ»ããã«æžè¡°ããŸããããŒãã«ã¯å°éãããK_AI=10^6ã§ã0.04ãšããã现ã管ããä¿ã¡ç¶ããŸããÏã¯K_AIâ3Ã10^4ããããã0.4ã0.5ãŸã§äžãããŸãããx*èªäœã¯ããã§ã4%ååŸã§äžãæ¢ãŸããå®å šé®æã¯ããŸãããγ_I=0.25ïŒéãããã®åã¡ïŒ:x*ã0.60â0.28ãžãšç·©ããã«æžã£ãŠãããŸãââç·åœ¢ç(v5)ã§ã¯x*=1.00ã«åŒµãä»ãããŸãŸã ã£ãã®ããå¹äŸ¿çã®ãããã§ãéãã°éãã»ã©éççãªæšå³ã¯æžãããšããåãå¹ãããã«ãªããããã§ãé©åºŠãªæ°Žæºã«èœã¡çããŸããγ_I=0.0ïŒçªå£ã®å€ªãã®ã¿ãè² æ ïŒ: éã«x*ã¯0.76â1.00ãžäžæããŸããçžæã倧ãããªã£ãŠãæ€èšŒã³ã¹ããå¢ããªãèšå®ãªã®ã§ãY_AIãšããåãåã倧ãããªãã»ã©ãå¹äŸ¿çã®é æã¡ãä¹ãè¶ããŠã§ãéãã«ããæ¹ãåŸã«ãªãããšããèªç¶ãªçµæã§ããã€ãŸããé©åºŠã«åã蟌ãã§ããããšãã宿§çãªçŽæã¯ã䟿çã®éæžãšæ€èšŒã³ã¹ãã®éå¢ãšãããããæšæºçãªãã¯ãçµæžåŠã®å¹åžæ§é ããå ¥ããã°ãç¹å¥ãªä»æããªãã«å ç¹è§£ãšããŠèªåçã«åºãŠãããšããããšã確èªã§ããŸãããç·åœ¢ç(v5)ãGrokã®èšããè§ããåºãªããæ§é ã ã£ãã®ã«å¯Ÿããããã¯æ£ãããé©åºŠããå®äœãã圢ã«ãªã£ãŠããŸãã
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- 远ãã€ãããšä»®å®ããã°(
γ<α): éæŸã»å šé¢èªååãæç¶å¯èœ- 远ãã€ããªããšä»®å®ããã°(
γ>α, ãã€å¹åžãå ¥ããã°): ãé©åºŠãªå°å ¥ããå ççã«å®åžžè§£ãšããŠåºã- å¹åžãå ¥ããã«
γ>αã ãä»®å®ãããš: å šé¢é®æãšããæ¥µç«¯è§£ã«ãªã(v5ç·åœ¢ç)ãšãã3éãã®äžçãããã©ã¡ãŒã¿äžã€ã®çœ®ãæ¹ã§å šéšãã®åŒã®äžã«äœãã§ããããšããããšãä»åã¯ã£ãããããšæããŸãã
%%writefile model_v6_moderate.py
# -*- coding: utf-8 -*-
"""
v6: è³æ¬ãå²ãã®ã§ã¯ãªããæ¥ç¶å£ããå²ã
========================================
ChatGPT/Grok ã®ææ: v4 ã¯ãè³æ¬ã¹ããã¯ãã®ãã®ãåå²ãããã¢ãã«ã ã£ããã
JRFããã®å
ã®çºæ³ã¯ãAIå
šäœãçè§£ãããã®ã§ã¯ãªããAIã人éçµæžã«æ¥ç¶ãã
é¢(ã€ã³ã¿ãŒãã§ãŒã¹)ãç£æ»ãããããšã ã£ãã¯ããv4ã¯AIçµæžåŽã«ç£æ»ã³ã¹ãã»
匟å§ã³ã¹ãã»åä¹±ãªã¹ã¯ã»ããã¯ãäžåç¡ããåé¢ã匷ãããã
ããã§ãK_AI ãã©ãã ã巚倧åãããŠãããããšã«ãããããã人éçµæžã«
ã茞å
¥ãããéã ããæ¯ç xâ[0,1] ã§çµãããšããã¢ãã«ã«å€æŽããã
needed(K_H, x, K_AI) = K_H^GAMMA_H + B * x * K_AI^GAMMA_I
GAMMA_H : 人éçµæžèªèº«ã®èªååç£æ»ã®éèŠåŒŸæ§ (ä»ãŸã§ãšåã 0.5)
GAMMA_I : ãçªå£ãã®ç£æ»éèŠãçžæ(AIçµæž)ã®èŠæš¡ã«ã©ãã ãåŒãããããã
GAMMA_I = 0 : çªå£ã®å€ªã(x)ã ããè² æ
ãçžæãããã倧ãããŠã
åã x ãªãç£æ»ã³ã¹ãã¯å€ãããªã
GAMMA_I > 0 : çžæã倧ããã»ã©ãåã x ã§ãæ€èšŒãã¹ã絶察éãå¢ãã
captured value = (1-tau) * [ s(1)*Y(K_H,1) + x * Y_AI(K_AI) ] * (1 - phi)
x ã¯r, tau, E ãšäžŠãã§è³æ¬å®¶ãéžã¶å€æ°ã
"""
import numpy as np
import model_v3 as m
B_COEF = 1.0
GAMMA_H = 0.5
RHO = 0.5 # å蟌ã®äŸ¿ç㯠x ã«ã€ããŠå¹ (æåã®çްã管ãæå®ã®å€§åãåã)
PSI = 2.0 # ç£æ»éèŠã¯ x ã«ã€ããŠåž (倪ã管ã»ã©æ€èšŒã¯äžé£ãåãã«éããªã)
PHI_MAX_V6 = 1.0
def y_ai(K_AI):
return m.output(K_AI, 1.0)
def needed_audit_interface(K_H, x, K_AI, gamma_i):
return (K_H ** GAMMA_H) + B_COEF * (x ** PSI) * (K_AI ** gamma_i)
def objective_interface(r, tau, E, x, K_H, K_AI, theta, delta, gamma_i):
a = 1.0
s = m.capital_share(a)
Y_H = m.output(K_H, a)
gross = (1 - tau) * (s * Y_H + (x ** RHO) * y_ai(K_AI))
need = needed_audit_interface(K_H, x, K_AI, gamma_i)
supply = m.audit_supply(r, E, K_H, delta, tau) # ç£æ»äŸçµŠã¯äººéçµæžåŽã®åºç€ã«äŸå
with np.errstate(divide="ignore", invalid="ignore"):
ratio = np.where(need > 1e-9, supply / need, 1.0)
phi = PHI_MAX_V6 * np.clip(1.0 - ratio, 0.0, 1.0)
p_revolt = m.revolt_prob(a, r, tau, K_H, theta)
cost = m.repression_cost(r, K_H) + m.elite_cost(E)
V = (1 - p_revolt) * gross * (1 - phi) - cost
return V, phi
GRID_N5 = 26
_grid5 = np.linspace(0.0, 1.0, GRID_N5)
_R5, _TAU5, _E5, _X5 = np.meshgrid(_grid5, _grid5, _grid5, _grid5, indexing="ij")
def best_interface(K_H, K_AI, theta, delta, gamma_i, e_max=None):
if e_max is None:
e_max = max(1.0, needed_audit_interface(K_H, 1.0, K_AI, gamma_i))
E_local = _E5 * e_max
V, phi = objective_interface(_R5, _TAU5, E_local, _X5, K_H, K_AI, theta, delta, gamma_i)
idx = np.unravel_index(np.argmax(V), V.shape)
r, tau, x = _grid5[idx[0]], _grid5[idx[1]], _grid5[idx[3]]
e = E_local[idx]
return (r, tau, e, x), V[idx], float(phi[idx])
if __name__ == "__main__":
K_H = 8.0
theta = 1.5
delta = 0.6
for gamma_i in [0.0, 0.25, 0.5]:
print(f"=== gamma_I={gamma_i} ===")
for K_AI in [10, 100, 1000, 1e4, 1e5, 1e6]:
(r, tau, e, x), v, phi = best_interface(K_H, K_AI, theta, delta, gamma_i)
print(f" K_AI={K_AI:>10.0f} x*={x:.2f} r*={r:.2f} tau*={tau:.2f} E*={e:.2f} phi={phi:.2f} V={v:.3f}")
Writing model_v6_moderate.py
!python model_v6_moderate.py
=== gamma_I=0.0 === K_AI= 10 x*=0.80 r*=0.16 tau*=0.44 E*=1.38 phi=0.00 V=1.219 K_AI= 100 x*=1.00 r*=0.24 tau*=0.40 E*=1.99 phi=0.00 V=2.227 K_AI= 1000 x*=1.00 r*=0.48 tau*=0.28 E*=3.37 phi=0.01 V=5.052 K_AI= 10000 x*=1.00 r*=0.52 tau*=0.24 E*=3.83 phi=0.00 V=12.592 K_AI= 100000 x*=1.00 r*=0.52 tau*=0.24 E*=3.83 phi=0.00 V=29.571 K_AI= 1000000 x*=1.00 r*=0.52 tau*=0.24 E*=3.83 phi=0.00 V=67.583 === gamma_I=0.25 === K_AI= 10 x*=0.60 r*=0.08 tau*=0.48 E*=1.11 phi=0.00 V=1.124 K_AI= 100 x*=0.52 r*=0.20 tau*=0.44 E*=1.68 phi=0.00 V=1.737 K_AI= 1000 x*=0.48 r*=0.28 tau*=0.40 E*=2.37 phi=0.01 V=3.180 K_AI= 10000 x*=0.40 r*=0.48 tau*=0.28 E*=4.11 phi=0.00 V=6.683 K_AI= 100000 x*=0.32 r*=0.60 tau*=0.20 E*=5.77 phi=0.01 V=15.192 K_AI= 1000000 x*=0.28 r*=0.64 tau*=0.08 E*=8.27 phi=0.00 V=35.600 === gamma_I=0.5 === K_AI= 10 x*=0.36 r*=0.16 tau*=0.44 E*=1.20 phi=0.00 V=1.043 K_AI= 100 x*=0.24 r*=0.24 tau*=0.44 E*=1.54 phi=0.00 V=1.399 K_AI= 1000 x*=0.16 r*=0.12 tau*=0.44 E*=1.38 phi=0.01 V=2.052 K_AI= 10000 x*=0.12 r*=0.48 tau*=0.24 E*=4.11 phi=0.00 V=3.087 K_AI= 100000 x*=0.04 r*=0.00 tau*=0.52 E*=0.00 phi=0.36 V=2.744 K_AI= 1000000 x*=0.04 r*=0.00 tau*=0.52 E*=0.00 phi=0.52 V=4.227
# -*- coding: utf-8 -*-
import numpy as np
import matplotlib
#matplotlib.use("Agg")
import matplotlib.pyplot as plt
from matplotlib import font_manager
import model_v6_moderate as m5
JP_FONT = None
for name in ["IPAexGothic", "Noto Sans CJK JP", "TakaoGothic", "Noto Sans JP"]:
matches = [f for f in font_manager.fontManager.ttflist if name.lower() in f.name.lower()]
if matches:
JP_FONT = matches[0].name
break
if JP_FONT:
plt.rcParams["font.family"] = JP_FONT
K_H = 8.0
THETA = 1.5
DELTA = 0.6
K_AI_VALUES = np.array([5, 10, 20, 40, 80, 150, 300, 600, 1200, 2500, 5000, 12000, 30000, 80000, 2e5, 5e5, 1e6])
GAMMAS = [(0.0, "gamma_I=0 (管ã®å€ªãã®ã¿ãçžæã®èŠæš¡ãšç¡é¢ä¿)", "black"),
(0.25, "gamma_I=0.25 (< alpha=0.35: éãããã®åã¡)", "crimson"),
(0.5, "gamma_I=0.5 (> alpha=0.35: éããã»ã©æ)", "steelblue")]
fig, axes = plt.subplots(1, 3, figsize=(16, 4.8))
results = {}
for gamma_i, label, color in GAMMAS:
xs, rs, taus, phis = [], [], [], []
for K_AI in K_AI_VALUES:
(r, tau, e, x), v, phi = m5.best_interface(K_H, K_AI, THETA, DELTA, gamma_i)
xs.append(x); rs.append(r); taus.append(tau); phis.append(phi)
results[gamma_i] = (xs, rs, taus, phis)
axes[0].semilogx(K_AI_VALUES, xs, "o-", color=color, label=label)
axes[1].semilogx(K_AI_VALUES, phis, "o-", color=color, label=label)
axes[2].semilogx(K_AI_VALUES, taus, "o-", color=color, label=label)
axes[0].set_title("x*(æ¥ç¶ç/å°å
¥ç)")
axes[0].set_xlabel("K_AI (log)")
axes[0].set_ylim(-0.05, 1.05)
axes[0].legend(fontsize=7.5, loc="upper right")
axes[0].grid(alpha=0.3)
axes[1].set_title("phi (ããã¯æå€±)")
axes[1].set_xlabel("K_AI (log)")
axes[1].set_ylim(-0.05, 1.05)
axes[1].grid(alpha=0.3)
axes[2].set_title("tau*(人éçµæžå
ã®ååé
)")
axes[2].set_xlabel("K_AI (log)")
axes[2].set_ylim(-0.05, 1.05)
axes[2].grid(alpha=0.3)
fig.suptitle("æ¥ç¶å£ã¢ãã«(å¹äŸ¿çã»åžã³ã¹ãç): K_H=%.0f åºå®ã§K_AIãåããããšãã® x*, phi, tau*" % K_H, fontsize=12)
fig.tight_layout(rect=[0, 0, 1, 0.92])
fig.savefig("fig7_moderate_interface.png", dpi=150, bbox_inches="tight")
print("saved fig7_moderate_interface.png")
plt.show()
with open("summary_v6.txt", "w") as f:
f.write("K_AI\t" + "\t".join(f"x_g{g}" for g, _, _ in GAMMAS) + "\t" +
"\t".join(f"phi_g{g}" for g, _, _ in GAMMAS) + "\n")
for i, K_AI in enumerate(K_AI_VALUES):
row = [f"{K_AI:.0f}"]
for gamma_i, _, _ in GAMMAS:
row.append(f"{results[gamma_i][0][i]:.2f}")
for gamma_i, _, _ in GAMMAS:
row.append(f"{results[gamma_i][3][i]:.2f}")
f.write("\t".join(row) + "\n")
print("saved summary_v6.txt")
!cat summary_v6.txt
saved fig7_moderate_interface.png
saved summary_v6.txt K_AI x_g0.0 x_g0.25 x_g0.5 phi_g0.0 phi_g0.25 phi_g0.5 5 0.76 0.60 0.48 0.00 0.00 0.01 10 0.80 0.60 0.36 0.00 0.00 0.00 20 0.80 0.56 0.40 0.00 0.01 0.00 40 0.92 0.56 0.32 0.00 0.00 0.01 80 1.00 0.52 0.28 0.00 0.00 0.01 150 1.00 0.52 0.24 0.00 0.00 0.02 300 0.96 0.48 0.20 0.00 0.00 0.00 600 1.00 0.48 0.20 0.00 0.01 0.01 1200 1.00 0.48 0.16 0.01 0.00 0.00 2500 1.00 0.40 0.16 0.00 0.00 0.00 5000 1.00 0.40 0.12 0.00 0.00 0.01 12000 1.00 0.36 0.12 0.00 0.00 0.01 30000 1.00 0.32 0.08 0.00 0.00 0.46 80000 1.00 0.32 0.04 0.00 0.00 0.35 200000 1.00 0.32 0.04 0.00 0.00 0.40 500000 1.00 0.28 0.04 0.00 0.00 0.46 1000000 1.00 0.28 0.04 0.00 0.00 0.52
ChatGPT:ïŒïŒ
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$$ x^{\rho},\qquad \rho=0.5 $$
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$$ \frac{d}{dx}x^{0.5}\to\infty \quad (x\to0) $$
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$$ \rho<1,\qquad \psi>1 $$
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$$ 0<x^*<1 $$
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$$ (\rho,\psi) $$
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$$ \rho=0.25,0.5,0.75,1.0 $$
$$ \psi=1,1.5,2,3 $$
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$$ K_{AI}=10^6 $$
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$$ \gamma_I/\alpha $$
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$$ x_t $$
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$$ x_{t+1}-x_t $$
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$$ C_{\rm change} = c_x(x_t-x_{t-1})^2 $$
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$$ \text{AI巚倧å} \rightarrow \text{ç£æ»éèŠå¢å€§} \rightarrow \text{æ¥ç¶ãå šéšéããªã} \rightarrow x<1 $$
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$$ \tau \rightarrow \text{æè²ã»ååã»ç£æ»èœå} $$
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$$ \tau \rightarrow x^* \text{ã倧ããã§ãã} $$
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$$ \boxed{ \text{èªå·±å©çæå€§å} \quad\Longrightarrow\quad \text{人é瀟äŒã®ç¶æãžã®å ççéèŠ} } $$
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- $\gamma_I=0.25$: ç·åœ¢çã§ã¯å šéã ã£ãã®ãã0.60 â 0.28 ãŸã§çްããªããéçã®æå®ãå ã«æžãããã§ãããå³ã®ãéãããã®åã¡ãã¯ããã®çã§ã¯ããæ£ãããªãã
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$\tau^*$ ãç³»åããšã«åãããã®ããã®åæ ã§ãããå šéã«è¿ãé»ã¯ãå£ã軜ããŸãŸãªã®ã§ååé ãããŸãè²·ããªããéã¯å£ãçŽ°ãæ®ãããã« $\tau$ ãåã³ç©ããæ€èšŒè£ çœ®ã®åçç£ãšããŠååé ãæ®ãããšãã以åã®è©±ã¯ã现ã管ã®ç³»åã§ã ãã¯ã£ããæ®ãã
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%%writefile model_v7_absolute.py
# -*- coding: utf-8 -*-
"""
v7: ãå²å xãã§ã¯ãªãã絶察é qãã§äººéçµæžãžã®æµå
¥ãèãã
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ChatGPT/Gemini/Grok ã®ææ: v6ãŸã§ã® x ã¯ãAIç£åºã«å¯Ÿããå²åãã ã£ãã
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ã絶察é q (äžé q_max)ãã§ããã¹ãã§ãç£æ»éèŠã q_max ã§é æã¡ã«ãªã
ã¯ãã§ããã
q â [0, q_max] 人éçµæžã«æµå
¥ããAIç£åºã®çµ¶å¯Ÿé
needed = K_H^GAMMA_H + B * q^PSI (K_AI ã«äžåäŸåããªãïŒ)
gross = (1-tau) * [ s(1)*Y(K_H,1) + q^RHO ] * (1 - phi)
K_AI â â ã§ã q 㯠q_max ã§é æã¡ã®ãŸãŸãªã®ã§ãneeded ãæéã«çãŸãã
ãããv2ãv6ãéããŠç¹°ãè¿ãåºãŠãããç£æ»éèŠãçç£ã远ãè¶ããŠ
ãã€ã厩å£ããããšããæ§é ãã®ãã®ããããããæç«ãããªãèšèšã«ãªãã
"""
import numpy as np
import model_v3 as m
B_COEF = 1.0
GAMMA_H = 0.5
RHO = 0.5
PSI = 2.0
PHI_MAX_V7 = 1.0
Q_MAX = 3.0 # 人éçµæžãã䜿ãåãããAIç£åºã®çµ¶å¯Ÿäžé (身äœçã»ç©çç飜å)
def y_ai(K_AI):
return m.output(K_AI, 1.0)
def needed_audit_interface(K_H, q):
return (K_H ** GAMMA_H) + B_COEF * (q ** PSI)
def objective_interface(r, tau, E, q, K_H, K_AI, theta, delta):
a = 1.0
s = m.capital_share(a)
Y_H = m.output(K_H, a)
q_eff = np.minimum(q, y_ai(K_AI)) # AIåŽãããããäœã£ãŠããé以äžã¯åã蟌ããªã
gross = (1 - tau) * (s * Y_H + q_eff ** RHO)
need = needed_audit_interface(K_H, q_eff)
supply = m.audit_supply(r, E, K_H, delta, tau)
with np.errstate(divide="ignore", invalid="ignore"):
ratio = np.where(need > 1e-9, supply / need, 1.0)
phi = PHI_MAX_V7 * np.clip(1.0 - ratio, 0.0, 1.0)
p_revolt = m.revolt_prob(a, r, tau, K_H, theta)
cost = m.repression_cost(r, K_H) + m.elite_cost(E)
V = (1 - p_revolt) * gross * (1 - phi) - cost
return V, phi
GRID_N7 = 26
_grid7 = np.linspace(0.0, 1.0, GRID_N7)
_R7, _TAU7, _E7 = np.meshgrid(_grid7, _grid7, _grid7, indexing="ij")
def _q_candidates(q_max):
# qã®æ¢çŽ¢ç¹ãq_maxã«æ¯äŸããããšãq_maxãç·©ãããšãã«å°ããqã®ä»è¿ã
# ç²ããªããããŠå
éšæé©ç¹ãåãããŒã(å®éã«çºçãããã°)ã
# 0ã5ã®ç¯å²ã絶察ã¹ã±ãŒã«ã§çްããããã以äžãç²ãæ¢çŽ¢ããã
fine_top = min(5.0, q_max)
fine = np.linspace(0.0, fine_top, 41)
if q_max > fine_top:
coarse = np.linspace(fine_top, q_max, 15)
return np.unique(np.concatenate([fine, coarse]))
return fine
def best_interface(K_H, K_AI, theta, delta, e_max=None, q_max=None):
if q_max is None:
q_max = Q_MAX
q_candidates = _q_candidates(q_max)
if e_max is None:
e_max = max(1.0, needed_audit_interface(K_H, min(q_max, 5.0)))
R, TAU, EFRAC, Q = np.meshgrid(_grid7, _grid7, _grid7, q_candidates, indexing="ij")
E_local = EFRAC * e_max
V, phi = objective_interface(R, TAU, E_local, Q, K_H, K_AI, theta, delta)
idx = np.unravel_index(np.argmax(V), V.shape)
r, tau, q = _grid7[idx[0]], _grid7[idx[1]], Q[idx]
e = E_local[idx]
return (r, tau, e, q), V[idx], float(phi[idx])
if __name__ == "__main__":
K_H = 8.0
theta = 1.5
delta = 0.6
for K_AI in [10, 100, 1000, 1e4, 1e6, 1e9, 1e12]:
(r, tau, e, q), v, phi = best_interface(K_H, K_AI, theta, delta)
print(f"K_AI={K_AI:>14.0f} q*={q:.3f} (q_max={Q_MAX}) r*={r:.2f} tau*={tau:.2f} E*={e:.2f} phi={phi:.3f} V={v:.3f}")
Overwriting model_v7_absolute.py
!python model_v7_absolute.py
K_AI= 10 q*=0.525 (q_max=3.0) r*=0.12 tau*=0.48 E*=0.95 phi=0.000 V=0.843 K_AI= 100 q*=0.525 (q_max=3.0) r*=0.12 tau*=0.48 E*=0.95 phi=0.000 V=0.843 K_AI= 1000 q*=0.525 (q_max=3.0) r*=0.12 tau*=0.48 E*=0.95 phi=0.000 V=0.843 K_AI= 10000 q*=0.525 (q_max=3.0) r*=0.12 tau*=0.48 E*=0.95 phi=0.000 V=0.843 K_AI= 1000000 q*=0.525 (q_max=3.0) r*=0.12 tau*=0.48 E*=0.95 phi=0.000 V=0.843 K_AI= 1000000000 q*=0.525 (q_max=3.0) r*=0.12 tau*=0.48 E*=0.95 phi=0.000 V=0.843 K_AI= 1000000000000 q*=0.525 (q_max=3.0) r*=0.12 tau*=0.48 E*=0.95 phi=0.000 V=0.843
# -*- coding: utf-8 -*-
import numpy as np
import matplotlib
#matplotlib.use("Agg")
import matplotlib.pyplot as plt
from matplotlib import font_manager
import model_v6_moderate as m6
import model_v7_absolute as m7
JP_FONT = None
for name in ["IPAexGothic", "Noto Sans CJK JP", "TakaoGothic", "Noto Sans JP"]:
matches = [f for f in font_manager.fontManager.ttflist if name.lower() in f.name.lower()]
if matches:
JP_FONT = matches[0].name
break
if JP_FONT:
plt.rcParams["font.family"] = JP_FONT
K_H = 8.0
THETA = 1.5
DELTA = 0.6
K_AI_VALUES = np.array([10, 100, 1000, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, 1e12])
phi_v6, phi_v7 = [], []
for K_AI in K_AI_VALUES:
(_, _, _, _), _, phi6 = m6.best_interface(K_H, K_AI, THETA, DELTA, 0.5) # gamma_I=0.5 (æãå³ããèšå®)
(_, _, _, _), _, phi7 = m7.best_interface(K_H, K_AI, THETA, DELTA)
phi_v6.append(phi6)
phi_v7.append(phi7)
fig, ax = plt.subplots(figsize=(8, 5))
ax.semilogx(K_AI_VALUES, phi_v6, "o-", color="crimson", label="v6: å²å x (K_AIã«äŸåããŠç£æ»éèŠãå¢ãç¶ãã)")
ax.semilogx(K_AI_VALUES, phi_v7, "s-", color="steelblue", label="v7: 絶察é q (K_AIããç¬ç«ãé æã¡)")
ax.set_xlabel("K_AI (log)")
ax.set_ylabel("phi (ããã¯æå€±)")
ax.set_ylim(-0.05, 1.05)
ax.set_title("AIçµæžãã©ãã ã巚倧åããŠãÏ(ããã¯æå€±)ã¯åŽ©å£ããã: å²åã¢ãã« vs 絶察éã¢ãã«")
ax.legend(fontsize=9)
ax.grid(alpha=0.3, which="both")
fig.tight_layout()
fig.savefig("fig8_v6_vs_v7.png", dpi=150, bbox_inches="tight")
print("saved fig8_v6_vs_v7.png")
plt.show()
with open("summary_v7.txt", "w") as f:
f.write("K_AI\tphi_v6(x, gamma_I=0.5)\tphi_v7(q, absolute)\n")
for i, K_AI in enumerate(K_AI_VALUES):
f.write(f"{K_AI:.0f}\t{phi_v6[i]:.3f}\t{phi_v7[i]:.3f}\n")
print("saved summary_v7.txt")
!cat summary_v7.txt
saved fig8_v6_vs_v7.png
saved summary_v7.txt K_AI phi_v6(x, gamma_I=0.5) phi_v7(q, absolute) 10 0.003 0.000 100 0.003 0.000 1000 0.013 0.000 10000 0.000 0.000 100000 0.359 0.000 1000000 0.518 0.000 10000000 0.729 0.000 100000000 0.887 0.000 1000000000 0.960 0.000 10000000000 0.987 0.000 100000000000 0.996 0.000 1000000000000 0.999 0.000
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