We document a consistent and robust relation between expected equity premia and common risk factors constructed on the basis of small stocks. Empirically, we show that (i) small-stock components of traditional value and momentum factors capture patterns in returns on regional and global...

This discussion paper led to a chapter in: (K.R. Schenk-Hoppe & T. Hens (Eds.,)) <I>Handbook of Financial Markets: Dynamics and Evolution</I>, Amsterdam:North Holland/Elsevier, 2009.<P> Traditional finance is built on the rationality paradigm. This chapter discusses simple models from an alternative...</p></i>

This discussion paper resulted in an article in the 'European Economic Review' (2006). Volume 50, issue 8, pages 1937-1950.<P> The main contribution of this study is the finding that round numbers can act aspricebarriers for individual stocks. In addition, a first step is made to explain this and...</p>

This paper examines experimentally two common conjectures in the popular literature on financial markets: that they are swayed by emotion and that they behave like a 'crowd'. We find consistent evidence that deviations of prices from fundamental value depend on the emotion of excitement and on...

Financial markets are typically characterized by high (low) price level and low (high) volatility during boom (bust) periods, suggesting that price and volatility tend to move together with different market conditions/states. By proposing a simple heterogeneous agent model of fundamentalists and...

This paper extends the analysis of the seminal paper of Brock and Hommes (1998) on heterogeneous beliefs and routes to chaos in a simple asset price model in discrete-time to a model in continuous-time. The resulting model characterized mathematically by a system of stochastic delay differential...

We construct a time-varying factor model of hedge fund returns that accounts for market risk, leverage, illiquidity and tail events. We also adjust for database biases arising from voluntary self-reporting. Using a constant beta model, we find no evidence of excess returns for the average hedge...

Expanding the panel model of Pesaran (2006) and Bai (2009), we propose a dynamic panel specification with Bayesian approach to capture the impact of unobservable industry-wide shocks to stock price movements. We employ fundamental accounting information to control company specific shocks and...

We develop a continuous-time asset price model to capture the time series momentum documented recently. The underlying stochastic delay differential system facilitates the analysis of effects of different time horizons used by momentum trading. By studying an optimal asset allocation problem, we...