Categorical classification of autocratic regimes following Geddes, Wright & Frantz (2014): military, single-party, personalist, and monarchy. Each type has distinct coup risk profiles. Military regimes face the highest coup risk (intra-military factionalism), personalist regimes face moderate risk (concentrated power but coup-proofing degradation), party regimes face lowest risk (institutionalized power-sharing), and monarchies have intermediate risk.