Research Lab

Everyone who has studied international equity returns has noticed the episodes of high volatility and unusually high correlations coinciding with a bear market. We develop quantitative models of asset returns that match these patterns in the data and use them in two quantitative asset allocation analyses. First, we show that the presence of regimes with different correlations and expected returns is difficult to exploit with within a global asset allocation framework focussed on equities. The benefits of international diversification dominate the costs of ignoring the regimes.

We investigate whether the accruals anomaly is a manifestation of the glamour stock phenomenon documented in the finance literature. Value (glamour) stocks, characterized by low (high) past sales growth, high (low) book-to-market (B/M), high (low) earnings-to-price (E/P), and high (low) cash flow-to-price (C/P), are known to earn positive (negative) future abnormal returns. Note that "C" or cash flow is operationalized in the finance literature as earnings adjusted for depreciation.

We propose a dynamic equilibrium model of asset prices and trading volume when agents face fixed transactions costs. We show that even small fixed costs can give rise to large "no-trade" regions for each agent's optimal trading policy. The inability to trade more frequently reduces the agents' asset demand and in equilibrium gives rise to a significant illiquidity discount in asset prices.

In the wake of the recent corporate scandals that have damaged investor confidence, policymakers, academics, and pundits have taken aim at accounting rules as one of the areas in need of reform. Proposals for changing the rules governing the accounting for the granting of stock options has become one of the most hotly contested areas. Advocates of reform argue that options are a form of compensation and that granting options entails real costs to stockholders. They argue that it follows that options should be included as an expense item in the firm's financial statements.

This study examines whether the quality of online buying experience represents a competitive advantage for Internet firms focused on business to consumer e-commerce (“e-commerce” firms). Forrester Research, a consulting firm, estimates that revenues in the business to consumer segment will grow from $20 billion in 1999 to $184 billion by 2004. Such explosive growth is due, in part, to the superior shopping experiences that new e-commerce firms offer.

Intertemporal aggregation results in a summarization of information and a natural delay in the release of information. We study a principal-agent model and show that intertemporal aggregation can be an optimal feature of a performance evaluation system. We then highlight subtleties associated with valuing additional information as the level of aggregation of existing information is varied.

We assemble bank-level and other data for Fed member banks to model determinants of bank failure. Fundamentals explain bank failure risk well. The first two Friedman-Schwartz crises are not associated with positive unexplained residual failure risk, or increased importance of bank illiquidity for forecasting failure. The third Friedman-Schwartz crisis is more ambiguous, but increased residual failure risk is small in the aggregate. The final crisis (early 1933) saw a large unexplained increase in bank failure risk.

This paper presents a financial statement analysis that distinguishes leverage that arises in financing activities from leverage that arises in operations. The analysis yields two leveraging equations, one for borrowing to finance operations and one for borrowing in the course of operations. These leveraging equations describe how the two types of leverage affect book rates of return on equity.