The aim of this paper is to compare statistical properties of stock price indices in periods of booms with those in periods of stagnations. We use the daily data of the four stock price indices in the major stock markets in the world: (i) the Nikkei 225 index (Nikkei 225) from January 4, 1975 to...

This study investigates the granular hypothesis introduced by Gabaix (2011) on the stock market. We focus on explaining fluctuations in macro variables in the stock market using market capitalization. We define idiosyncratic firm-level shocks as the deviation of market capitalization from...