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Using a standard frictionless, continuous time, and continuous trading stochastic economy with heterogeneous beliefs, the purpose of this paper is to provide sufficient conditions for the existence of competitive equilibrium in an incomplete asset market. A new approach to proving existence is...
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Incomplete', Journal of Economic Theory, 11 (3), December, 418-43 -- David Cass (2006), 'Competitive Equilibrium with Incomplete …), 'On the Theory of the Firm in an Economy with Incomplete Markets', Bell Journal of Economics and Management Science, 5 (1 …. Grossman and Oliver D. Hart (1979), 'A Theory of Competitive Equilibrium in Stock Market Economies', Econometrica, 47 (2 …
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We show that debt is sustainable at a competitive equilibrium based solely on the reputation for repayment; that is, even without collateral or legal sanctions available to creditors. In an incomplete asset market, when the rate of interest falls recurrently below the rate of growth of the...
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In a model with multiple Pareto-ranked equilibria we add trade in assets that pay based on the realization of a sunspot. Asset trading restricts the equilibrium set in a way that raises welfare by eliminating equilibria with a high likelihood of disasters. When the probability of a disaster is...
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