Recent event study literature has highlighted abnormal stock returns, particularly in short event windows. A common explanation is the cross-correlation of stock returns that are often enhanced during periods of sharp market movements. This suggests the misspecification of the underlying factor...

This thesis consists of three single-authored chapters on high-frequency market microstructure. All of them are self-contained, and can be read independently. Chapter 1 examines the extent of herd behavior in a financial market from 2005 to 2008; in particular, whether herd selling increased during...

This paper examines the within-market and cross-market information content of order flow for stocks, corporate bonds and Treasury bonds in China. With daily-aggregated tick-by-tick data over three years on the Shanghai Security Exchange, we find negative cross-asset effects of order flow on...