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 aggregate 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, investment is too low.
|Date of creation:||1988|
|Date of revision:|
|Publication status:||Published in Journal of Political Economy -Chicago-|
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- Hart, Oliver, 1982. "A Model of Imperfect Competition with Keynesian Features," The Quarterly Journal of Economics, MIT Press, vol. 97(1), pages 109-38, February.
- Shleifer, Andrei, 1986.
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University of Chicago Press, vol. 94(6), pages 1163-90, December.
- 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.
- 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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