We document that postwar U.S. elections show a strong pattern of "incumbency disadvantage": If a party has held the presidency of the country or the governorship of a state for some time, that party tends to lose popularity in the subsequent election. We show that this fact can be explained by a...

Uncertainty in election outcomes generates politically induced regulatory risk. For monopoly regulation, political parties' risk attitudes towards such risk depend on a fluctuation effect that hurts both parties and an output-expansion effect that benefits at least one party. Irrespective of the...