We study the investment behavior of foreign investors in association with an equity market liberalization, and find a strong link between foreigners´ trading and local market returns. In the period following the liberalization, foreigners´ net purchases led to a permanent increase in prices,...

Traditional mean-variance efficient portfolios do not capture the potential wealth creation opportunities provided by predictability of asset returns. We propose a simple method for constructing optimally managed portfolios that exploits the possibility that asset returns are predictable. We...

This paper shows that there is a close relation between corporate governance and the portfolios held by investors. Most firms in countries with poor investor protection are controlled by large shareholders, so that only a fraction of the shares issued by firms in these countries can be freely...

Recent research has suggested that natural selection in financial markets may be a very slow process, taking hundreds of years. We show in a general equilibrium model that it may be much faster in markets with large state spaces. In many cases, the time it takes to wipe out irrational investors...

Large shareholders may play an important role for firm policies and performance, but identifying an effect empirically presents a challenge due to the endogeneity of ownership structures. However, unlike other blockholders, individuals tend to hold blocks in corporations that are located close...

To understand the investment behavior of venture capital (VC) investors, this paper estimates a dynamic model of learning. Behavior reflecting both learning from past investments (exploitation) and anticipated future learning (exploration) are found to be prevalent, and the model's additional...

We develop an empirical framework that allows us to analyze the effects of heterogeneity across large shareholders, using a new blockholder-firm panel data set in which we can track all unique blockholders among large public U.S. firms. We find statistically significant and economically...

I derive indifference curves in mean-standard deviation space for investors with prospect theory preferences when returns are normally distributed. The normality assumption creates a mapping between model parameters and the investment opportunity set. The model is then calibrated to historical...

I explore cross-sectional portfolio performance in a sample containing 324,736 transactions conducted by 16,831 investors at an Internet discount brokerage firm during the period May 1999 to March 2002. On average, investors hold undiversified portfolios, show a strong preference for risk, and...

We exploit the restrictions of intertemporal portfolio choice in the presence of non-financial income risk to design and implement tests of hedging that use the information contained in the actual portfolio of the investor. We use a unique dataset of Swedish investors with information broken...