Dynamic risk-sharing with two-sided moral hazard

• 成果类型: Article
• 署名作者: Zhao, Rui R.
• 署名单位: State University of New York (SUNY) System; University at Albany, SUNY
• 刊物名称: JOURNAL OF ECONOMIC THEORY
• ISSN/ISSBN: 0022-0531
• DOI: 10.1016/j.jet.2006.10.008
• 发表日期: 2007
• 页码: 601-640
• 关键词: risk-sharing; two-sided moral hazard; hidden effort; dynamic contracts; consumption distribution

摘要

A group of risk-averse agents repeatedly produce a perishable consumption good; individual outputs are observable but efforts are not. The contracting problem admits a recursive formulation, and the optimal value function is the fixed point of a contraction mapping. When the agents can be punished to the full extent in a single period, every continuation contract of an optimal contract is itself optimal; the marginal utility ratio between one agent and another is a submartingale. The results imply that it is in general important to restrict an agent whose moral hazard constraint is binding from saving through another agent within the risk-sharing group. Limited commitment and long-run implications of optimal contracting are also examined. (C) 2006 Elsevier Inc. All rights reserved.