This assessment of Scott Page's The Difference (Princeton University Press, 2007) emphasizes the depth and breadth of the book's coverage and arguments and checks them against existing empirical evidence, when available. It argues that the book navigates artfully between being a “manifesto” for diversity and rigorous science writing while at the same time marketing economic science in new ways. The review welcomes the book's popularization of richer aspects of everyday decision making, individual and collective, and its making an excellent case for the social significance of abstract economic theorizing, especially about problem solving. It praises the book's lively interpretations of statistical tools of decision making by means of enticing narratives. The book's rhetoric urges us to move beyond accepting diversity as a matter of taste, or even because of its beneficial effects on the “production function,” and ultimately adopts its powerful logic. It speculates that the book's true impact will likely come after thorough empirical research. In empirical endeavors, issues of definition, especially of identity and of measurement, and evaluation of policies that would enhance diversity would be decisive. In democratic societies, policies may pose new dilemmas as they benefit from public interest in overcoming the accumulation of past disadvantages. (JEL D23, Z13)

There is ample evidence that incentive‐pay structures, such as tournaments, result in increased performance. Is this due to selection or increased individual effort, and is any increased individual effort caused by pecuniary incentives or merely thirst for the thrill of victory (TOV)? Prior literature has not separated the different effects. We look at performance in horse and dog racing and find that only horses, controlled by jockeys during the race, exhibit performance corresponding to pecuniary incentives, while both respond to selection and TOV. The results show that pay structures do matter.

By reducing the threat of a hostile takeover, business combination (BC) laws weaken corporate governance and increase the opportunity for managerial slack. Consistent with the notion that competition mitigates managerial slack, we find that while firms in non-competitive industries experience a significant drop in operating performance after the laws’ passage, firms in competitive industries experience no significant effect. When we examine which agency problem competition mitigates, we find evidence in support of a “quiet-life” hypothesis. Input costs, wages, and overhead costs all increase after the laws’ passage, and only so in non-competitive industries. Similarly, when we conduct event studies around the dates of the first newspaper reports about the BC laws, we find that while firms in non-competitive industries experience a significant stock price decline, firms in competitive industries experience a small and insignificant stock price impact.

[This article examines the optimal CEO compensation and replacement policy when the CEO is privately informed about the firm's continuation value under his leadership. Ex ante moral hazard implies that the CEO must receive ex post quasi rents, which endogenously biases him toward continuation. Our model shows that to induce "bad" CEOs to quit, it may be best to make continuation costly (through steep incentive pay) rather than simply rewarding quitting (through severance pay). Incentive pay makes continuation attractive for "good" CEOs, who can expect high future on-the-job pay, but unattractive for "bad" CEOs, who may instead prefer to take their outside option payoff. Our model generates novel empirical implications that jointly relate CEO compensation and turnover to corporate governance, firm size, cash-flow risk, and the informativeness of performance measurement.]

[This article examines the determinants of financial covenant thresholds in bank loan agreements and information conveyed through the selection of tight financial covenants. We find that riskier firms and firms with fewer investment opportunities select tighter financial covenants. We also find that selection of tight covenants is associated with improvements in the covenant variable and declines in investment spending and net debt issuance. We observe these changes also for borrowers that do not breach their covenants, suggesting that they are not simply the result of creditor influence conditional on a technical default. Furthermore, we find that violations of tightly set covenants have significantly less of an impact on the borrower's investment spending and net debt issuance than violations of loosely set covenants. Overall, our results suggest that the selection of tight covenants conveys information concerning future changes in covenant variables, investment and financial policies, and the outcome of covenant violations.]

We empirically examine whether risk-taking by publicly traded US companies declined significantly after adoption of the Sarbanes-Oxley Act of 2002 (SOX). Several provisions of SOX are likely to discourage risk-taking, including an expanded role for independent directors, an increase in director and officer liability, and rules related to internal controls. We find several measures of risk-taking decline significantly for US versus non-US firms after SOX. The magnitudes of the declines are related to several firm characteristics, including pre-SOX board structure, firm size, and R&D expenditures. The evidence is consistent with the proposition that SOX discourages risk-taking by public US companies.