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Creator: Shell, Karl and Wright, Randall D. Series: Staff report (Federal Reserve Bank of Minneapolis. Research Department) Number: 133 Abstract:
We analyze economies with indivisible commodities. There are two reasons for doing so. First, we extend and provide new insights into sunspot equilibrium theory. Finite competitive economies with perfect markets and convex consumption sets do not allow sunspot equilibria; these same economies with nonconvex consumption sets do, and they have several properties that can never arise in convex environments. Second, we provide a reinterpretation of the employment lotteries used in contract theory and in macroeconomic models with indivisible labor. We show how socially optimal employment lotteries can be decentralized as competitive equilibria once sunspots are introduced.
Palabra clave: Contract theory, Economic theory, Equilibrium theory, Competitive equilibrium, and Macroeconomic model