Integration of unemployment insurance with retirement insurance

• 成果类型: Article
• 署名作者: Stiglitz, JE; Yun, J
• 署名单位: Ewha Womans University; Columbia University
• 刊物名称: JOURNAL OF PUBLIC ECONOMICS
• ISSN/ISSBN: 0047-2727
• DOI: 10.1016/j.jpubeco.2004.12.007
• 发表日期: 2005
• 页码: 2037-2067
• 关键词: integration; unemployment; self-insurance; consumption; search

摘要

This paper analyzes a social insurance system that integrates unemployment insurance with a pension program, allowing workers to borrow against their future wage income to finance consumption during an unemployment episode and thus improving search incentives while reducing the risks arising from unemployment. This paper identifies the conditions under which integration improves welfare and the factors which determine the optimal degree of integration. We show that when the duration of unemployment is very short compared to the period of employment or retirement, the optimal system involves exclusive reliance on pension-funded self-insurance. This system imposes a negligible risk burden for workers while avoiding attenuating search incentives. We also argue that joint integration of several social insurance programs with a pension program through an individual account is desirable unless the risks are perfectly correlated with each other. (c) 2005 Elsevier B.V. All rights reserved.