In a simple cash-credit model, I study the effects of the combination of costly tax collection and tax evasion on fiscal and monetary policy for optimal resource allocation. Allowing the informal sector to use cash more intensively than the formal sector, I compute the optimal interest and tax...

Monetary policy implementation in a federal country requires both vertical (national and subnational governments) and horizontal (between subnational jurisdictions) institutional coordination. The optimal centralized monetary policy is blind and potentially nonheterogeneous at the subnational...