In an endogenous growth framework with two public goods with differing productivities, this paper analytically characterizes optimal fiscal policy for a decentralized economy, whereby the optimal values of the growth rate, tax rate and expenditure shares on the two public goods are linked...

This paper extends the Barro (1990) endogenous growth model with productive government services to a two-country world with perfect capital mobility, populated by optimising agents with uncertain lifetimes. It shows that increases in government spending on infrastructure for the home country...