Abstract
It is shown that risk-sharing examined in Rothschild and Stiglitz (1976) has a perfect Nash equilibrium, which is unique, incentive-efficient and continuous in all parameters of the economy. Competition in individual markets of a perfectly competitive economy is generally imperfect and allows for cross-market subsidies. Contrary to the commonly accepted view, buyer's valuation of a contract cannot be identified with her valuation of consumption stipulated by that contract. A promise of future performance by a seller lacks credibility whenever its acceptance by buyers leads to a probable violation of seller's resource constraints. This renders vacuous threats to equilibrium that Rothschild and Stiglitz view as leading to extreme market failure.
Published Version
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