The Efficiency of Investment in the Presence of Aggregate Demand Spillovers
In the presence of aggregate demand spillovers, an imperfectly competitive firm's profit is positively related to aggregate income, which in turn rises with profits of all firms in the economy. This pecuniary externality makes a dollar of a firm's profit raise aggrega te income by more than a dollar, since other firms' profits also rise, and in this way gives rise to a "multiplier." Since such multipliers are ignored by firms making investment decisions, privately optimal investment decisions under uncertainty will not, in general, be socially optimal. Under reasonable conditions, investmen t is too low. Copyright 1988 by University of Chicago Press.
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- Olivier J. Blanchard & Nobuhiro Kiyotaki, 1985. "Monopolistic Competition, Aggregate Demand Externalities and Real Effects of Nominal Money," NBER Working Papers 1770, National Bureau of Economic Research, Inc.
- Shleifer, Andrei, 1986.
Journal of Political Economy,
University of Chicago Press, vol. 94(6), pages 1163-90, December.
- Oliver Hart, 1982. "A Model of Imperfect Competition with Keynesian Features," The Quarterly Journal of Economics, Oxford University Press, vol. 97(1), pages 109-138.
- P. Diamond, 1980.
"Aggregate Demand Management in Search Equilibrium,"
268, Massachusetts Institute of Technology (MIT), Department of Economics.
- Weitzman, Martin L, 1982. "Increasing Returns and the Foundations of Unemployment Theory," Economic Journal, Royal Economic Society, vol. 92(368), pages 787-804, December.
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