The title to this post is a link. Via Makoto Shimizu, who has translated many of my posts on monetary policy into Japanese here. Be sure to read my post "Negative Rates and the Fiscal Theory of the Price Level" in conjunction with this interview. For more background, see "How and Why to Eliminate the Zero Lower Bound: A Reader’s Guide," which in addition to links about negative interest rate policy generally, contains several links to posts about Japan's policies.