Globalization of trading in foreign exchange markets is a principal source of the daily and weekly seasonability in market volatility. One way to model such phenomena is to adopt a framework where market volatility is tied to the intensity of (world) trading through a subordinated stochastic...

This paper examines causality between the series of returns and transaction volumes in high frequency data. The dynamics of both series is restricted to transitions between a finite number of states. Depending on the state selection criteria, this approach approximates the dynamics of varying...

Globalization of trading in foreign exchange markets is a principal sourceof the daily and weekly seasonability in market volatility. One way to mo del such phenomena is to adopt a framework where market volatility is tiedto the intensity of (world) trading through a subordinated stochastic pro...

This paper examines causality between the series of returns ans transaction volumes in high frequency data. The dynamics in both series is restricted to transitions between a finite umber of stated. Depending on the state selection criteria, this approach approximated the dynamics of varying...