Productive government expenditures and long-run growth

The purpose of this paper is to review some of the recent developments in endogenous growth models. Specifically, our focus is on the growth effects of productive government spending in dynamic general equilibrium models. We use a simple overlapping generations model as our basic framework and illustrate the role of taxes and spending. We then examine several related issues: nonrivalry in publicly provided goods, existence and uniqueness of competitive equilibrium, endogenous public policy, ways of financing public expenditures, composition of publicly provided goods and services, and private alternatives. Finally, we review some empirical results related to output elasticity of public capital and educational expenditures.