GARCH-type models have been very successful in describing the volatility dynamics of financial return series for short periods of time. However, for example macroeconomic events may cause the structure of volatility to change and the assumption of stationarity is no longer plausible. In order to...

GARCH-type models have been very successful in describing the volatility dynamics of financial return series for short periods of time. However, the time-varying behavior of investors, for example, may cause the structure of volatility to change and the assumption of stationarity is no longer...

This paper proposes a novel approach to determine whether mutual funds time the market. The proposed approach builds on a heterogeneous agent model, where investors switch between cash and stocks depending on a certain switching rule. This approach is more flexible, intuitive, and parsimonious...

In this paper, we examine the role of national culture in corporate takeover decisions, by arguing that managerial risk tolerance (a combination of risk aversion and risk perception), at the national level, is a cultural trait and affects the expected net synergies CEOs require. We propose a...

This paper examines whether trading based on market sentiment can explain mispricing in S&P 500 options. We test the heterogeneous agent s option pricing model developed in Frijns et al. (2010), where our agents have different beliefs about the future level of market volatility and trade...

This paper examines whether trading based on market sentiment can explain mispricing in S&P 500 options. We test the heterogeneous agent s option pricing model developed in Frijns et al. (2010), where our agents have different beliefs about the future level of market volatility and trade...

Purpose -The purpose of this paper is to investigate the impact of individual investor sentiment on the return process and conditional volatility of three main US market indices (Dow Jones Industrial Average, S&P500 and Nasdaq100). Individual investor sentiment is measured by aggregate money...

GARCH-type models have been very successful in describing the volatility dynamics of financial return series for short periods of time. However, for example macroeconomic events may cause the structure of volatility to change and the assumption of stationarity is no longer plausible. In order to...

This paper develops and tests a heterogeneous agents model for the option market. Our agents have different beliefs about the future level of volatility of the underlying stock index and trade accordingly. We consider two types of agents: fundamentalists and chartists, who are able to switch...

This paper jointly analyzes traditional and behavioral concepts in a simple experimental setting which allows for the assessment of the relative importance of each factor and their joint behavior. Various hypotheses are tested in three portfolio choice models. Markowitz [Markowitz, H., 1952....