"The desirability of fiscal constraints in monetary unions depends critically on whether the monetary authority can commit to follow its policies. If it can commit, then debt constraints can only impose costs. If it cannot commit, then fiscal policy has a free-rider problem, and debt constraints...

We consider the effect of excluding government investment from the deficit subject to the limits of the European Stability and Growth Pact. In the model we consider, residents of a given country discount future costs and benefits of government spending more than efficiency would dictate, because...