We investigate the predictability of both volatility and volume for a large sample of Japanese stocks. The particular emphasis of this paper is on assessing the performance of long memory time series models in comparison to their short-memory counterparts. Since long memory models should have a...

We investigate the predictability of both volatility and volume for a large sample of Japanese stocks. The particular emphasis of this paper is on assessing the performance of long memory time series models in comparison to their short-memory counterparts. Since long memory models should have a...

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...