というNBER論文が上がっている。原題は「Why Did Putin Invade Ukraine? A Theory of Degenerate Autocracy」で、著者はGeorgy Egorov(ノースウエスタン大)、Konstantin Sonin(シカゴ大)。 以下はその要旨。 Many, if not most, personalistic dictatorships end up with a disastrous decision such as Hitler’s attack on the Soviet Union, Hirohito’s government launching a war against the United States, or Putin’s invasion of Ukraine in February 2022. Even if the d