We consider the political economy of a monetary union where member governments attempt to influence the policy of the common central bank. Modeling this as a common agency with incentive contracts, we show that if incentives are all that matters for the bank, the equilibrium implements a...

Compared with the traditional public-finance approach of a monolithic fully informed planner, earmarking of taxation is less likely to be optimal if a principal-agent setting is considered, where taxing and spending are performed by two separate agents which are monitored by the parliament. We...