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Managing with Style: The Effect of Managers on Firm Policies

Quarterly Journal of Economics 2003 118(4), 1169-1208
This paper investigates whether and how individual managers affect corporate behavior and performance. We construct a manager-firm matched panel data set which enables us to track the top managers across different firms over time. We find that manager fixed effects matter for a wide range of corporate decisions. A significant extent of the heterogeneity in investment, financial, and organizational practices of firms can be explained by the presence of manager fixed effects. We identify specific patterns in managerial decision-making that appear to indicate general differences in "style" across managers. Moreover, we show that management style is significantly related to manager fixed effects in performance and that managers with higher performance fixed effects receive higher compensation and are more likely to be found in better governed firms. In a final step, we tie back these findings to observable managerial characteristics. We find that executives from earlier birth cohorts appear on average to be more conservative; on the other hand, managers who hold an MBA degree seem to follow on average more aggressive strategies.

Does Entry Regulation Hinder Job Creation? Evidence from the French Retail Industry

Quarterly Journal of Economics 2002 117(4), 1369-1413
Are product market and entry regulation key sources of low employment growth in many European countries? We investigate this question in the context of the French retail trade industry. Since 1974, approval by regional zoning boards has been required for the creation or extension of any large retain store in France. We exploit a unique database that provides time- and region-specific variation in boards' approval decisions. We show that stronger deterrence of entry by the boards increased retailer concentration and slowed down employment growth in France.

Are CEOs Rewarded for Luck? The Ones Without Principals Are

Quarterly Journal of Economics 2001 116(3), 901-932
The contracting view of CEO pay assumes that pay is used by shareholders to solve an agency problem. Simple models of the contracting view predict that pay should not be tied to luck, where luck is defined as observable shocks to performance beyond the CEO's control. Using several measures of luck, we find that CEO pay in fact responds as much to a lucky dollar as to a general dollar. A skimming model, where the CEO has captured the pay-setting process, is consistent with this fact. Because some complications to the contracting view could also generate pay for luck, we test for skimming directly by examining the effect of governance. Consistent with skimming, we find that better governed firms pay their CEO less for luck.

How Much Should We Trust Differences-In-Differences Estimates?

Quarterly Journal of Economics 2004 119(1), 249-275 open access
Most papers that employ Differences-in-Differences estimation (DD) use many years of data and focus on serially correlated outcomes but ignore that the resulting standard errors are inconsistent. To illustrate the severity of this issue, we randomly generate placebo laws in state-level data on female wages from the Current Population Survey. For each law, we use OLS to compute the DD estimate of its “effect” as well as the standard error of this estimate. These conventional DD standard errors severely understate the standard deviation of the estimators: we find an “effect” significant at the 5 percent level for up to 45 percent of the placebo interventions. We use Monte Carlo simulations to investigate how well existing methods help solve this problem. Econometric corrections that place a specific parametric form on the time-series process do not perform well. Bootstrap (taking into account the autocorrelation of the data) works well when the number of states is large enough. Two corrections based on asymptotic approximation of the variance-covariance matrix work well for moderate numbers of states and one correction that collapses the time series information into a “pre”- and “post”-period and explicitly takes into account the effective sample size works well even for small numbers of states.

Ferreting out Tunneling: An Application to Indian Business Groups

Quarterly Journal of Economics 2002 117(1), 121-148 open access
Owners of business groups are often accused of expropriating minority shareholders by tunneling resources from firms where they have low cash flow rights to firms where they have high cash flow rights. In this paper we propose a general methodology to measure the extent of tunneling activities. The methodology rests on isolating and then testing the distinctive implications of the tunneling hypothesis for the propagation of earnings shocks across firms within a group. When we apply our methodology to data on Indian business groups, we find a significant amount of tunneling, much of it occurring via nonoperating components of profit.

Obtaining a Driver's License in India: An Experimental Approach to Studying Corruption

Quarterly Journal of Economics 2007 122(4), 1639-1676
We study the allocation of driver's licenses in India by randomly assigning applicants to one of three groups: bonus (offered a bonus for obtaining a license quickly), lesson (offered free driving lessons), or comparison. Both the bonus and lesson groups are more likely to obtain licenses. However, bonus group members are more likely to make extralegal payments and to obtain licenses without knowing how to drive. All extralegal payments happen through private intermediaries (“agents”). An audit study of agents reveals that they can circumvent procedures such as the driving test. Overall, our results support the view that corruption does not merely reflect transfers from citizens to bureaucrats but distorts allocation.