By using data from nine waves of the IMF Coordinated Portfolio Investment Survey, we explore the determinants of bilateral portfolio investments and their dynamics. The main goal of our analysis is that of understanding whether a diversifi cation motive can be found, among the various...

This paper studies the quantitative properties of a general equilibrium model where a continuum of heterogeneous entrepreneurs are subject to aggregate as well as idiosyncratic risks in the presence of a borrowing constraint. The calibrated model matches the highly skewed wealth and income...

I study the effects of credit tightening in an economy with uninsured idiosyncratic investment risk. In the model, entrepreneurs require an equity premium because collateral constraints limit insurance. After collateral constraints tighten, the equity premium and the riskiness of consumption...

We investigate the portfolio choices of mean-variance-optimizing investors who use sample evidence to update prior beliefs centered on either risk-based or characteristic-based pricing models. With dogmatic beliefs in such models and an unconstrained ratio of position size to capital, optimal...

Major events often trigger abrupt changes in stock prices and volatility. We study the implications of jumps in prices and volatility on investment strategies. Using the event-risk framework of Duffie, Pan, and Singleton (2000), we provide analytical solutions to the optimal portfolio problem....

This study examines how the effect of uncertainty on capital investment varies between focused firms and conglomerate segments. One advantage of conglomeration is that it gives segments access to the conglomerate's internal capital market, making them less likely to be financially constrained....

The inclusion of funding costs in the valuation of derivatives resulting in the so-called funding valuation adjustment (FVA) is a topic of intense debate, model development, and research. One issue with standard formulations of FVA is that it is the same for liquid and illiquid assets. Even if...

This paper investigates how the nature of risk changes as investment horizon lengthens, and what it means for investors. Accumulated wealth is analyzed in terms of four drivers: expected return, cash flow innovations, discount rate innovations, and reinvestment rates. This perspective highlights...

There is an increasing likelihood that governments of major economies will act within the next decade to reduce greenhouse gas emissions, probably by intervening in the fossil fuel markets through taxation or cap \& trade mechanisms (collectively ``carbon pricing''). We develop a model to...