This paper determines the real effects of credible disinflation when price setting is staggered. The results are surprising: a fairly quick disinflation causes a boom. This finding suggests that nominal price rigidity alone does not explain why disinflation is costly in actual economies

The paper studies the effects of credible disinflation in the presence of real wage rigidity, comparing the Calvo and Rotemberg price setting mechanisms (the two popular variants of the New-Keynesian model). In both types of models, a credible, gradual disinflation is shown to lead to a delayed...