Why did Putin invade Ukraine? A theory of degenerate autocracy

Georgy Egorov & Konstantin Sonin

American Journal of Political Science2026https://doi.org/10.1111/ajps.70039article
AJG 4*ABDC A*
Weight
0.50

Abstract

Many dictatorships end up with a series of disastrous decisions such as Hitler's attack on the Soviet Union or Saddam Hussein's aggression against Kuwait. Even if a certain policy choice is not ultimately fatal for the regime, such as Mao's Big Leap Forward or the Pol Pot's collectivization drive, they typically involve both a miscalculation by the leadership and an institutional environment in which better informed subordinates have no chance to prevent the decision from being implemented. We offer a dynamic model of nondemocratic politics in which repression and bad decision making are self‐reinforcing. Repression reduces the immediate threat to the regime, yet raises future stakes for the dictator; with higher stakes, the dictator puts more emphasis on loyalty than competence, which in turn increases the probability of a wrong policy choice. Our theory offers an explanation of how rational dictators end up in an informational bubble even in highly institutionalized regimes.

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https://doi.org/https://doi.org/10.1111/ajps.70039

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@article{georgy2026,
  title        = {{Why did Putin invade Ukraine? A theory of degenerate autocracy}},
  author       = {Georgy Egorov & Konstantin Sonin},
  journal      = {American Journal of Political Science},
  year         = {2026},
  doi          = {https://doi.org/https://doi.org/10.1111/ajps.70039},
}

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Evidence weight

0.50

Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40

F · citation impact0.50 × 0.4 = 0.20
M · momentum0.50 × 0.15 = 0.07
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

† Text relevance is estimated at 0.50 on the detail page — for your query’s actual relevance score, open this paper from a search result.