Monetary Policy when Interest Rates Are Bounded at Zero
评估名义利率零下限对货币政策利率传导渠道的重要性，通过模拟不同通胀目标下的利率规则，分析零下限如何影响实际利率和产出应对负面冲击。
This paper assesses the importance of the zero lower bound on nominal interest rates for the interest-rate channel of monetary policy. We simulate several interest-rate setting policy rules with either high or low inflation targets. We determine the extent to which the zero bound prevents real rates from falling, thus cushioning aggregate output in response to negative spending shocks. For small temporary and large permanent shocks, the output path with zero inflation lies modestly below that for higher inflation. For large shocks persisting a few quarters, differences in output paths across high- and low-inflation scenarios can be larger. © 1997 by the President and Fellows of Harvard College and the Massachusetts Institute of Technology