Monetary policy in a financial crisis

• 成果类型: Article; Proceedings Paper
• 署名作者: Christiano, LJ; Gust, C; Roldos, J
• 署名单位: Northwestern University; National Bureau of Economic Research; Federal Reserve System - USA; International Monetary Fund
• 刊物名称: JOURNAL OF ECONOMIC THEORY
• ISSN/ISSBN: 0022-0531
• DOI: 10.1016/S0022-0531(03)00228-X
• 发表日期: 2004
• 页码: 64-103
• 关键词: FINANCIAL CRISIS; Exchange rates; Collateral constraint

摘要

What are the economic effects of an interest rate cut when an economy is in the midst of a financial crisis? Under what conditions will a cut stimulate output and employment, and raise welfare? Under what conditions will a cut have the opposite effects? We answer these questions in a general class of open economy models, where a financial crisis is modelled as a time when collateral constraints are suddenly binding. We find that when there are frictions in adjusting the level of output in the traded good sector and in adjusting the rate at which that output can be used in other parts of the economy, then a cut in the interest rate is most likely to result in a welfare-reducing fall in output and employment. When these frictions are absent, a cut in the interest rate improves asset positions and promotes a welfare-increasing economic expansion. (C) 2003 Elsevier Inc. All rights reserved.