What does the historical record tell us about how to conduct monetary policy in a deflationary environment? We present a broad cross-country historical study of deflation over the past two centuries in order to shed light on current policy challenges. We first review the theoretical literature...

Deflation has had a bad rap, largely based on the experience of the 1930's when deflation was synonymous with depression. Recent experience with declining prices in Japan and China together with the concern over deflation in Europe and the United States has led to renewed attention to the topic...

We distinguish between good and bad deflations. In the former case, falling prices may be caused by aggregate supply (possibly driven by technology advances) increasing more rapidly than aggregate demand. In the latter case, declines in aggregate demand outpace any expansion in aggregate supply....