Attempts by governments to stop bubbles by issuing warnings seem unsuccessful. This paper examines the effects of public warnings using a simple model of riding bubbles. We show that public warnings against a bubble can stop it if investors believe that a warning is issued in a definite range of...

We study micro price dynamics and their macroeconomic implications using daily scanner data from 1988 to 2013. We provide five facts. First, posted prices in Japan are ten times as flexible as those in the U.S. scanner data. Second, regular prices are almost as flexible as those in the U.S. and...

Standard New Keynesian models have often neglected temporary sales. In this paper, we ask whether this treatment is appropriate. In the empirical part of the paper, we provide evidence using Japanese scanner data covering the last two decades that the frequency of sales was closely related with...

In this study, we analyze the relationship between inflation and economic growth. To this end, we construct a model of endogenous growth with creative destruction, incorporating sticky prices due to menu costs. Inflation and deflation reduce the reward for innovation via menu cost payments and,...

Money is not neutral if firm entry and exit are incorporated into a menu cost model. The real effect of money increases as a firm entry and exit rate increases, and the key is non-uniform firm distribution.

This paper considers the macroeconomic effects of retailers’ market concentration and buyer-size discounts on inflation dynamics. During Japan’s “lost decades,” large retailers enhanced their market power, leading to increased exploitation of buyer-size discounts in procuring goods. We...

We consider the fiscal multiplier and spillover in an environment in which two countries are caught simultaneously in a liquidity trap. Using a standard New Open Economy Macroeconomics (NOEM) model, an optimizing two-country sticky price model, we show that the fiscal multiplier and spillover...