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Equilibrium Labor Turnover, Firm Growth, and Unemployment

Econometrica 2016 84(1), 347-363 open access
This paper considers equilibrium quit turnover in a frictional labor market with costly hiring by firms, where large firms employ many workers and face both aggregate and firm specific productivity shocks. There is exogenous firm turnover as new (small) startups enter the market over time, while some existing firms fail and exit. Individual firm growth rates are disperse and evolve stochastically. The paper highlights how dynamic monopsony, where firms trade off lower wages against higher (endogenous) employee quit rates, yields excessive job-to-job quits. Such quits directly crowd out the reemployment prospects of the unemployed. With finite firm productivity states, stochastic equilibrium is fully tractable and can be computed using standard numerical techniques.

Differences in Auditors' Materiality Assessments When Auditing Financial Statements and Sustainability Reports

Contemporary Accounting Research 2016 33(2), 551-575 open access
With increased interest in voluntary sustainability reports from investors and other stakeholders, more companies are having these reports assured. The issue of what is considered material in these assurance engagements is important, and yet research on materiality has focused only on financial statement audits. This article reports the results of an experiment where auditors assess the materiality of audit differences in the same magnitude for both a financial audit and a sustainability (water) assurance engagement. Two factors, the risk of breaching a contract and community impact, are manipulated between‐subjects. We find that auditors assess the materiality of an audit difference significantly higher for a financial case than for a water case. This difference is significantly greater when there is no risk of breaching a contract than when there is a risk of breaching a contract. The risk of breaching a contract has a stronger effect on the difference in auditors' materiality assessments when there is no community impact than when there is a community impact. Overall our findings suggest that qualitative factors have a greater impact on sustainability (water) materiality assessments than on financial statement materiality assessments when an audit difference is between 5 percent and 10 percent of a relevant base. Understanding the factors that impact material judgments in sustainability reports is important as these factors affect the reliability of the reported disclosures.

Minimum Wage Shocks, Employment Flows, and Labor Market Frictions

Journal of Labor Economics 2016 34(3), 663-704 open access
We provide the first estimates of the effects of minimum wages on employment flows in the US labor market, identifying the impact by using policy discontinuities at state borders. We find that minimum wages have a sizable negative effect on employment flows but not on stocks. Separations and accessions fall among affected workers, especially those with low tenure. We do not find changes in the duration of nonemployment for separations or hires. This evidence is consistent with search models with endogenous separations.

Landing the First Job: The Value of Intermediaries in Online Hiring

Review of Economic Studies 2016 83(2), 810-854 open access
Online markets for remote labour services allow workers and firms to contract with each other directly. Despite this, intermediaries—called outsourcing agencies—have emerged in these markets. This article shows that agencies signal to employers that inexperienced workers are high quality. Workers affiliated with an agency have substantially higher job-finding probabilities and wages at the beginning of their careers compared to similar workers without an agency affiliation. This advantage declines after high-quality non-affiliated workers receive good public feedback scores. The results indicate that intermediaries have arisen endogenously to permit a more efficient allocation of workers to jobs.

Gambling Preferences, Options Markets, and Volatility

Journal of Financial and Quantitative Analysis 2016 51(2), 515-540 open access
This study examines whether the gambling behavior of investors affects volume and volatility in financial markets. Focusing on the options market, we find that the ratio of call option volume relative to total option volume is greatest for stocks with return distributions that resemble lotteries. Consistent with the theoretical predictions of Stein (1987), we demonstrate that gambling-motivated trading in the options market influences future spot price volatility. These results not only identify a link between lottery preferences in the stock market and the options market, but they also suggest that lottery preferences can lead to destabilized stock prices.

Efficient Coordination in Weakest-Link Games

Review of Economic Studies 2016 83(2), 737-767 open access
Coordination problems resembling weakest-link games with multiple Pareto ranked equilibria are ubiquitous in the economy and society. This makes it important to understand if and when agents are able to coordinate efficiently. Existing research on weakest-link games shows an overwhelming inability of people to coordinate on efficient equilibria, especially in larger groups. We show experimentally that freedom of neighbourhood choice overcomes the problem and leads to fully efficient coordination. This implies substantial welfare effects with achieved welfare being about 50% higher in games with neighbourhood choice than without it. We identify exclusion of low effort providers who in response start providing high effort as the simple but effective mechanism enforcing efficient coordination. A variety of other treatments show that the efficiency result as well as the identified mechanism are robust to changes in the information condition, payoff specification, and a substantial increase in group size. Moreover, we find that neighbourhood choice boosts efficiency even when exclusion does not materially affect the excluded agent. Our results are widely applicable on the societal and organizational level, e.g . containment of diseases, fight against terrorism, and co-authorship networks.

The Role of Bequests in Shaping Wealth Inequality: Evidence from Danish Wealth Records

American Economic Review 2016 106(5), 656-661 open access
Using Danish administrative data, we estimate the impact of bequests on the level and inequality of wealth. We compare the distributions of wealth over time of people whose parent died and those whose parent did not. Bequests account for 26 percent of the average post-bequest wealth 1-3 years after parental death and significantly affect wealth throughout the distribution. Bequests increase absolute wealth inequality (variance of the distribution censored at the top/bottom 1% increases by 33 percent), but reduce relative inequality (the top 1% share declines by 6 percentage points from the base of 31 percent).

Behind the Scenes: The Corporate Governance Preferences of Institutional Investors

Journal of Finance 2016 71(6), 2905-2932 open access
We survey institutional investors to better understand their role in the corporate governance of firms. Consistent with a number of theories, we document widespread behind‐the‐scenes intervention as well as governance‐motivated exit. These governance mechanisms are viewed as complementary devices, with intervention typically occurring prior to a potential exit. We further find that long‐term investors and investors that are less concerned about stock liquidity intervene more intensively. Finally, we find that most investors use proxy advisors and believe that the information provided by such advisors improves their own voting decisions.

Are There Environmental Benefits from Driving Electric Vehicles? The Importance of Local Factors

American Economic Review 2016 106(12), 3700-3729 open access
We combine a theoretical discrete-choice model of vehicle purchases, an econometric analysis of electricity emissions, and the AP2 air pollution model to estimate the geographic variation in the environmental benefits from driving electric vehicles. The second-best electric vehicle purchase subsidy ranges from $2,785 in California to −$4,964 in North Dakota, with a mean of −$1,095. Ninety percent of local environmental externalities from driving electric vehicles in one state are exported to others, implying they may be subsidized locally, even when the environmental benefits are negative overall. Geographically differentiated subsidies can reduce deadweight loss, but only modestly.