A General Equilibrium Model of Changing Risk Premia: Theory and Tests

• 成果类型: Article
• 署名作者: Bossaerts, Peter; Green, Richard C.
• 署名单位: Carnegie Mellon University
• 刊物名称: REVIEW OF FINANCIAL STUDIES
• ISSN/ISSBN: 0893-9454
• DOI: 10.1093/rfs/2.4.467
• 发表日期: 1989
• 页码: 467
• 关键词: stock; expectations; components; SEPARATION; valuation; returns; prices

摘要

We derive and test a dynamic discrete-time model of asset returns. Both the risks of individual securities and equilibrium risk premia change predictably in the model but these changes can be attributed to movements in the returns and prices of only two well-diversified portfolios. Any other components of returns should be unpredictable. Using the generalized method of moments, the model is estimated and tested on portfolios of equities. We find the data supportive of the model's restrictions, even when instruments designed to capture the January effect are employed.