Numerous studies have documented the existence of nonlinearity within various financial time series. But how important of a finding is this? This dissertation examines this issue from a number of perspectives. First, is the nonlinearity that has been found a statistical anomaly that is isolated...

The Nonlinear Behavior of Stock Prices:The Impact of Firm Size, Seasonality, and Trading FrequencyDebra Ann Skaradzinski(ABSTRACT)Statistically significant prediction of stock price changes requires security returns correlation with, or dependence upon, some variable(s) across time. Since a...

The dissertation consists of two essays. In the first essay, we measure herding by institutional investors in the new economy (internet) stocks during 1998-2001 by examining the changes in the quarterly institutional holdings of internet stocks relative to an average stock. More than 95% of the...