Mean and variance of daily type A and B stock returns in Shanghai and Shenzhen exchanges are studied before and after these stocks were subject to a ± 10% daily return limit, and when investors' clientele were segmented, vs. merged. We find that imposing the ± 10% return limit significantly...

We compare changes of mean and variance of returns as two regulations have changed between 1992 and 2007 in the Chinese exchanges of Shanghai and Shenzhen. Specifically, we compare the implementation of a ±10% daily return limit vs. the absence of any limit, and the effect of allowing local and...

Japan's most powerful known earthquake struck at 2:46p.m. on Friday, March 11, 2011. We study the unusual trading behaviors of individual and foreign investors in Japan during the aftermath of this natural disaster. Individual investors typically show contrarian trading patterns, so the sharp...

The Japanese stock prices, which had been on the uptrend before the occurence of the Great East Japan Earthquake, dramatically plummeted after the disaster. However, it showed some resilience within a few weeks. In recent years, a large share of transactions in Japan's equity markets has been...