The ubiquity of networks in our social lives has long been recognized, and their importance in our economic lives is increasingly recognized as well. Yet the literature synthesized in Matthew O. Jackson's Social and Economic Networks, which covers the theory of how networks form, decay, and shape behavior at a general level, has had little influence on either applied theory or empirical work in this area. This is partly because of limitations of network theory as it has evolved in this literature. After describing the network theory presented in the book, I discuss these limitations and make some tentative suggestions as to how they might be overcome. (JEL D85, L14, Z13)

In this study, we examine the determinants of board monitoring activity and its impact on firm value for a broad panel of firms over a six-year period from 1999 to 2005. During this period, Congress and the exchanges promulgated regulations that increased pressure upon firms for more independent and active boards. Economists have debated whether board activity and externally imposed regulations benefit or harm firms. We develop and examine several proxies for board monitoring and examine the relationship between board monitoring activity, firm characteristics, and firm value in a structural equation framework. One set of our proxies is based on the number of annual board and Audit Committee meetings. We show that prior performance, firm characteristics and governance characteristics are important determinants of board activity. We also show that the board monitoring is driven by corporate events, such as an acquisition or a restatement of financial statements. We find that board activity has a positive impact on firm value. Our results also indicate that the external pressure has had a salutary effect and recent regulations have led to some increase in firm value. A second set of proxies is based on the shift to a fully independent Audit, Compensation and Nominating Committees. We find that firms increased the independence of these Board committees following the enactment of the 2002 Sarbanes-Oxley Act.

Why aren't there more women in science? This paper begins to shed light on this question by exploiting data from the U.S. Air Force Academy, where students are randomly assigned to professors for a wide variety of mandatory standardized courses.We focus on the role of professor gender. Our results suggest that although professor gender has little impact on male students, it has a powerful effect on female students' performance in math and science classes, and high-performing female students' likelihood of taking future math and science courses, and graduating with a STEM degree. The estimates are largest for students whose SAT math scores are in the top 5% of the national distribution. The gender gap in course grades and STEM majors is eradicated when high-performing female students are assigned to female professors in mandatory introductory math and science coursework.

This paper examines why unsolicited ratings tend to be lower than solicited ratings. Both self-selection among issuers and strategic conservatism of rating agencies may be reasonable explanations. Analyses of default incidences of non-U.S. borrowers between January 1996 and December 2006 show that rating conservatism may play a role for industrial firms, but self-selection cannot be fully rejected. Neither can it for insurance companies, though data restrictions impede further conclusions. For unsolicited bank ratings, however, we find strong evidence that rating conservatism is an important cause. The downward bias also appears to increase along with banks’ opaqueness.

The use of stock-based compensation as a solution to agency problems between shareholders and managers has increased dramatically since the early 1990s. We show that in a dynamic rational expectations model with asymmetric information, stock-based compensation not only induces managers to exert costly effort, but also induces them to conceal bad news about future growth options and to choose suboptimal investment policies to support the pretense. This leads to a severe overvaluation and a subsequent crash in the stock price. Our model produces many predictions that are consistent with the empirical evidence and are relevant to understanding the current crisis.

[We analyze the long-run trends in executive compensation using a new dataset of top officers of large firms from 1936 to 2005. The median real value of compensation was remarkably flat from the late 1940s to the 1970s, revealing a weak relationship between pay and aggregate firm growth. By contrast, this correlation was much stronger in the past thirty years. This historical perspective also suggests that compensation arrangements have often helped to align managerial incentives with those of shareholders because executive wealth was sensitive to firm performance for most of our sample. These new facts pose a challenge to several common explanations for the rise in executive pay since the 1980s.]

The Financial Accounting Standards Board (FASB) and International Accounting Standards Board (IASB), in their joint Financial Statement Presentation project, are reconsidering the basic format of financial statements. The Boards’ preliminary discussions related to this joint project indicate that they intend to modify the required financial statements to increase the proximity of performance‐related information for each reported period. We provide evidence related to this potential change by investigating the effects of financial statement information proximity on investors’ ability to learn the forecast‐relevant time series properties of reported cash flows and accruals. We also examine the role feedback plays in this relationship. Our experimental results suggest that nonprofessional investors are able to more quickly learn the relation between current period cash flows and accruals and future cash flow realizations when financial statement information is presented in a single statement rather than separated into two statements. In addition, we find that nonprofessional investors exhibit lower levels of absolute forecast errors and less forecast dispersion when financial statement information is unified into a single statement. Finally, we provide evidence that nonprofessional investors who receive extensive outcome feedback on a single page initially learn more quickly and later, after learning has leveled off, accurately forecast more consistently than do investors who receive extensive or limited feedback spread across two pages. Overall, our results provide evidence on the effectiveness of alternate financial statement presentation formats and the potential usefulness of receiving more extensive feedback.

[In February 2003, the U.S. Securities and Exchange Commission officially certified a fourth credit rating agency, Dominion Bond Rating Service (DBRS), for use in bond investment regulations. After DBRS certification, bond yields change in the direction implied by the firm's DBRS rating relative to its ratings from other certified rating agencies. A one-notch-higher DBRS rating corresponds to a 39-basis-point reduction in a firm's debt cost of capital. The impact on yields is driven by cases where the DBRS rating is better than other ratings and is larger among bonds rated near the investment-grade cutoff. These findings indicate that ratings-based regulations on bond investment affect a firm's cost of debt capital.]