The Markowitz mean-variance optimizing framework has served as the basis for modern portfolio theory for more than 50 years. However, efforts to translate this theoretical foundation into a viable portfolio construction algorithm have been plagued by technical difficulties stemming from the...

We present a novel source of disagreement grounded in decision theory: ambiguity aversion. We show that ambiguity aversion generates endogenous disagreement between a firm's insider and outside shareholders, creating a new rationale for corporate governance systems. In our paper, optimal...

Using the regression discontinuity design of close gubernatorial elections in the U.S., we identify a significant and positive impact of the social networks of corporate directors and politicians on firm value. Firms connected to elected governors increase their value by 3.89%. Political...

This paper presents a rational expectations model of optimal executive compensation in a setting where managers are in a position to manipulate short-term stock prices, and managers' propensity to manipulate is uncertain. Stock-based incentives elicit not only productive effort, but also costly...

We consider the strategic timing of information releases in a dynamic disclosure model. Because investors don’t know whether or when the firm is informed, the firm will not necessarily disclose immediately. We show that bad market news can trigger the immediate release of information by firms....

We shed new light on the corporate governance role of institutional investors in markets where concentrated ownership and business groups are prevalent. When companies have controlling shareholders, institutional investors, as minority shareholders, can play only a limited role in corporate...

We examine the firm- and country-level determinants of the currency denomination of small business loans. We first model the choice of loan currency in a framework which features a trade-off between lower cost of debt and the risk of firm-level distress costs, and also incorporates the impact of...

China’s economic reforms have resulted in spectacular growth and poverty reduction. However, China’s institutions look ill-suited to achieve such a result, and they indeed suffer from serious shortcomings. To solve "China puzzle" this paper analyses China’s institution - a regionally...

This paper documents the range of portfolio manager ownership in the funds they manage and examines whether higher ownership is associated with improved future performance. Almost half of all managers have ownership stakes in their funds, though the absolute investment is modest. Future...

This paper analyses in a formal model the problem of achieving financial discipline in a transitional economy with bank-intermediated finance. Even if banks have no intrinsic interest in refinancing unprofitable firms, they may still exploit the softness of government. By gambling for government...