In this paper we extend the model of Easley and O’Hara (1992) to allow the arrival rates of informed and uninformed trades to be time-varying and forecastable. We specify a generalized autoregressive bivariate process for the arrival rates of informed and uninformed trades and estimate the...

In this paper, we define dynamic and static factors and distinguish between the dynamic and static structure of asset excess returns. We examine the value-weighted market portfolio as a dynamic factor and propose an intuitively appealing procedure to search for more dynamic factors. We find...

Introduction: A mere decade ago Japan’s financial system, and especially its banking system, was not only the largest but the strongest in the world. Nine of the world’s top ten banks in asset size were Japanese; the Big Four Japanese securities companies were the world’s largest; and its...