Research Lab

Affine jump-diffusion (AJD) processes constitute a large and widely used class of continuous-time asset pricing models that balance tractability and flexibility in matching market data. The prices of e.g., bonds, options, and other assets in AJD models are given by extended pricing transforms that have an exponential-affine form; these transforms have been characterized in great generality by Duffie et al. [2000. Transform analysis and asset pricing for affine jump-diffusions. Econometrica 68, 1343–1376].

How public pension plan assets should be invested is an important but unsettled question. Some observers endorse the standard practice of investing heavily in higher yielding but riskier equities, reasoning that the higher average returns will reduce future required tax receipts and also help to reduce underfunding over time. Others advocate a more conservative approach that reduces the volatility of funding levels and the likelihood of severe shortfalls during economic downturns when government resources are already constrained.

Heterogeneity is ubiquitous in firm-level and sectoral data. Equilibrium models, however, typically assume a representative firm, as in Andrew B. Abel and Olivier J. Blanchard (1983). The representative firm paradigm leaves no role for the distribution of capital. We model capital reallocation in a general equilibrium model with two sectors. Capital adjustment costs capture illiquidity in our model, similar to Hirofumi Uzawa's (1969) capital installation technology.

This monograph focuses on the use of incomplete contracting models to study transfer pricing. Intrafirm pricing mechanisms affect division managers' incentives to trade intermediate products and to undertake relationship-specific investments so as to increase the gains from trade. Letting managers negotiate over the transaction is known to cause holdup (underinvestment) problems. Yet, in the absence of external markets, negotiations frequently outperform cost-based mechanisms, because negotiations aggregate cost and revenue information more efficiently into prices.

We propose a new three-pronged plan to address the recent harmful flood of foreclosures. Our plan would address the major barriers that inhibit the ability of third-party servicers to modify mortgages the way portfolio lenders are now doing with greater success. The plan provides greater compensation for servicers to perform their duties, removes legal constraints that inhibit modification, and addresses critical second liens that often get in the way of effective mortgage modifications.

Several recent papers assume that private information (PIN), proposed by Easley et al. [2002. Is information risk a determinant of asset returns? Journal of Finance 57, 218–2221; 2004. Factoring information into returns. Working Paper, Cornell University], is a determinant of stock returns. We replicate Easley et al. (2002) and show that while PIN does predict future returns in the sample they analyze, the effect is not robust to alternative specifications and time periods.

This book describes valuation as an exercise in financial statement analysis. Students learn to view a firm through its financial statements and to carry out the appropriate financial statement analysis to value the firm's debt and equity. The book takes an activist approach to investing, showing how the analyst challenges the current market price of a share by analyzing the fundamentals. With a careful assessment of accounting quality, accounting comes to life as it is integrated with the modern theory of finance to develop practical analysis and valuation tools for active investing.

We investigate whether current mid-level and future entry-level managers subjectively value stock options and restricted stock consistent with economic theory. We also investigate whether managers' subjective valuations are sensitive to changes in key characteristics of these equity instruments. We believe our investigation is important for three reasons. First, in recent years firms have granted the vast majority of options to employees who are not senior-level executives.

The Financial Accounting Standards Committee of the American Accounting Association (the Committee) is charged with responding to requests for comments from standard-setters on issues related to financial reporting. The Financial Accounting Foundation (FAF) released for public comment on December 18, 2007 with a response period ending on February 10, 2008, "Proposed Changes to Oversight, Structure, and Operations of the FAF, FASB, and GASB (the proposal). This commentary concerns four important public policy issues in the proposal with the most relevance for accounting standard setting: