Fiscal Policy and the Implementation of the Walsh Contract for
Central Bankers

Haizhou Huang


A. Jorge Padilla

We develop a simple macroeconomic model where the time inconsistency
of optimal monetary policy is due to tax distortions. If fiscal policy is exogenously fixed at its optimal level, a Walsh contract (Walsh, 1995) offered to an independent central bank implements the optimal monetary policy. When fiscal policy is determined endogenously, however, this contract is subject to strategic manipulation by the government, which results in a sub optimal policy mix. Implementing the optimal policy mix requires either that the central bank enjoy primacy over the fiscal authority or that fiscal policy be also dele-gated to an independent authority.

Key Words: Central banking; Optimal contracts; Monetary and fiscal policy; Strategic manipulation; Nash implementation.
JEL Classification Numbers: E58, E61, L16.