Numerous government policies have attempted to keep workers out of the workplace, on the assumption that this will lower transmission of COVID-19. We test that assumption, measuring the effect of aggregate workplace absence on US COVID deaths at the county level through August. Instrumenting...

Credit guarantees are popular policy responses during crises. Despite their prevalence, evidence of their effectiveness is sparse. We estimate the impacts of UK guarantees implemented during the Great Recession, by exploiting unexpected firm-size eligibility restrictions. We use a...

This paper investigates the impact of manager turnover on the performance of young firms and examines the variation of this impact across firms with different ownership and control structures. Using a novel manager-shareholder matched dataset of young firms in the United Kingdom, I exploit...

We introduce and describe a Stata routine weakivtest implementing the test for weak instruments of Montiel Olea and Pflueger (2013). weakivtest allows for errors that are not conditionally homoskedastic and serially uncorrelated. It extends the Stock and Yogo (2005) weak instrument tests...

Numerous government policies have attempted to keep workers out of the workplace, on the assumption that this will lower transmission of COVID-19. We test that assumption, measuring the effect of aggregate workplace absence on US COVID deaths at the county level through August. Instrumenting...

We introduce a routine, weakivtest, that implements the test for weak instruments by Montiel Olea and Pflueger (2013, Journal of Business and Economic Statistics 31: 358–369). weakivtest allows for errors that are not conditionally homoskedastic and serially uncorrelated. It extends the Stock...

Ride-sharing platforms face a “productivity paradox”, where any efficiency gained through improved dispatch or pricing strategies will not benefit drivers or riders. We show that this is a limit of the traditional ride-hailing model, and a consequence of the Hall-Horton driver equilibrium...

We examine the value added by venture capital investors during the due-diligence process. We use data from a seed fund that quasi-randomly assigns applicants to due diligence, creating a natural experiment. We find that due-diligence assignment leads to higher average growth, even for companies...

In a randomized trial of two interventions on employer health benefit decision-making, 156 employers in the evidence-based (EB) condition attended a two hour presentation reviewing scientific evidence demonstrating depression products that increase high quality treatment of depression in the...