FISCAL POLICY IN A GROWING ECONOMY WITH PUBLIC CAPITAL

Abstract

Public capital subject to congestion is introduced into an endogenous growth model and the transitional dynamic paths under alternative fiscal policies are characterized. Several new insights are obtained from this more general framework. During the transition, the two capital stocks always approach their common equilibrium growth rate from opposite directions. Government policy induces the more volatile response in the capital stock upon which it impinges most directly: private capital in the case of a tax, public capital in the case of expenditure. Finally, we characterize a time-varying income tax that enables the decentralized economy to replicate both the first-best transitional dynamics and steady-state equilibrium of a centrally planned economy. The steady-state component corrects for externalities that arise when government expenditure deviates from its social optimum, and the effects of congestion. The transitional component corrects for myopic behavior by the representative agent along the adjustment path.

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