Business Formation and Aggregate Investment

Abstract: The paper proposes an intertemporal equilibrium model with monopolistic competition and free entry to explain the nexus between business formation and medium run growth. An investment externality is identified that results in underaccumulation of capital in the decentralized market equilibrium and, thus, creates an investment multiplier. Some form of investment promotion is called for. The paper compares the effectiveness of policies to promote business formation with a general investment subsidy.;