We show that (i) dynamic inefficiency may be empirically relevant in a modified Diamond model with imperfect competition, (ii) if fiscal policy is used to avoid inefficiency and maintain an optimal capital intensity, the required debt ratio will be inversely related to the growth rate, and (iii)...

If people understand that some macroeconomic policies are unsustainable, why would they vote for them in the first place? We develop a political economy theory of the endogenous emergence of fiscal crises, based on the idea that the adjustment mechanism to a crisis favors some social groups,...