We study insurers' use of prescription drug formularies to screen consumers in the ACA Health Insurance Exchanges. We begin by showing that Exchange risk adjustment and reinsurance succeed in neutralizing selection incentives for most, but not all, consumer types. A minority of consumers,...

This paper brings new evidence from the privatized social security system in Mexico, offering insight into investment behavior and the efficacy of government "nudges" in the context of profit maximizing firms. We use administrative data from the social security system surrounding the government...

Funds of funds are an increasingly popular avenue for hedge fund investment. Despite the increasing interest in hedge funds as an alternative asset class, the high degree of fund specific risk and the lack of transparency may give fiduciaries pause. In addition, many of the most attractive hedge...

Working with a sizeable, anonymous money manager, we randomly make available for lending two-thirds of the high-loan fee stocks in the manager's portfolio and withhold the other third to produce an exogenous shock to loan supply. We implement the lending experiment in two independent phases: the...

This paper studies the impact of public audit oversight on financial reporting credibility. We analyze changes in market responses to earnings news after public audit oversight is introduced, exploiting that the regime onset depends on fiscal year-ends, auditors, and the rollout of auditor...

This paper provides the first partner tenure and rotation analysis for a large cross-section of U.S. publicly listed firms over an extended period. We analyze the effects on audit quality as well as economic tradeoffs related to partner tenure and rotation with respect to audit hours and fees....

Insiders can artificially deflect the market prices of financial instruments from their full-information or inside value' by issuing deceptive accounting reports. Incentive support for disinformational activity comes through forms of compensation that allow corporate insiders to profit...

Each year, the United States Internal Revenue Service identifies taxpayers who may have erroneously claimed Earned Income Tax Credit (EITC) benefits and audits them through a mail correspondence process to verify their claims. This paper exploits the random variation arising from certain aspects...

We examine whether examiners were informed and contributed to the health of the banking sector. Information included quantitative information that was eventually made public, quantitative information that remained private, and subjective information dependent on the examiner's production of...

In this paper we present an econometric analysis of state and federal tax audits. We first present results from a survey of state tax administrators. The survey results indicate that most state tax audit programs are small and rely extensively on information provided by the IRS, although some...