This paper examines the relationship among daily information flow, return volatility, and bid-ask spreads based on the framework of the Mixture of Distribution Hypothesis (MDH). The MDH model is modified to permit separate effects of informed and liquidity trading volume on return volatility....

This article examines the relationship among intradaily information flows, volatility and volume based on the Mixture of Distribution Hypothesis (MDH). We generalize the MDH model to accommodate both informed and uninformed trading effects on return volatility. Using a Fourier filtering...

This paper examines short‐run information transmission between the U.S. and U.K. markets using the S&P 500 and FTSE 100 index futures. Ultrahighfrequency futures data are employed—which have a number of advantages over the low‐frequency spot data commonly used in previous studies—in...