期刊
AMERICAN ECONOMIC REVIEW
卷 104, 期 1, 页码 27-65出版社
AMER ECONOMIC ASSOC
DOI: 10.1257/aer.104.1.27
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We augment a standard monetary dynamic general equilibrium model to include a Bernanke-Gertler-Gilchrist financial accelerator mechanism. We fit the model to US data, allowing the volatility of cross-sectional idiosyncratic uncertainty to fluctuate over time. We refer to this measure of volatility as risk. We find that fluctuations in risk are the most important shock driving the business cycle.
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