We report results from a new survey of local residential land use regulatory regimes for over 2,450 primarily suburban communities across the U.S. The most highly regulated markets are on the two coasts, with the San Francisco and New York City metropolitan areas being the most highly regulated...

We present evidence that shared codes, religious beliefs, ethnicity - cultural proximity - between lenders and borrowers improves the efficiency of credit allocation. We identify in-group preferential treatment using dyadic data on the religion and caste of bank officers and borrowers from a...

Fuel economy standards change the composition of the vehicle fleet, potentially influencing accident safety. I introduce a model of the fleet that captures risks across interactions between vehicle types while simultaneously recovering estimates of unobserved driving safety behavior. The model...

There has been a remarkable increase in wage inequality in the US, UK and many other countries over the past three decades. A significant part of this appears to be within observable groups (such as age-gender-skill cells). A generally untested implication of many theories rationalizing the...

I consider how online postsecondary education, including massive open online courses (MOOCs), might fit into economically sustainable models of postsecondary education. I contrast nonselective postsecondary education (NSPE)in which institutions sell fairly standardized educational services in...

This paper studies the effects of nursing home unionization on numerous labor, establishment, and consumer outcomes using a regression discontinuity design. We find negative effects of unionization on staffing levels and no decline in care quality, suggesting positive labor productivity effects....

We analyze the effect of a decision support tool designed to help physicians detect and correct medical quot;misstepsquot;. The data comes from a randomized trial of the technology on a population of commercial HMO patients. The key findings are that the new information technology lowers average...

We develop estimation methods that use the amount of selection on the observables in a model as a guide to the amount of selection on the unobservables. We show that if the observed variables are a random subset of a large number of factors that influence the endogenous variable and the outcome...

This paper models how the evolving field of pharmacogenomics (PG), which is the science of using genomic markers to predict drug response, may impact drug development times, attrition rates, costs, and the future returns to research and development (R&D). While there still remains an abundance...

The Home Owners' Loan Corporation purchased more than a million delinquent mortgages from private lenders between 1933 and 1936 and refinanced the loans for the borrowers. Its primary goal was to break the cycle of foreclosure, forced property sales and decreases in home values that was...