To analyze the effect of health on work, many studies use a simple self-assessed health measure based upon a question such as "do you have an impairment or health problem limiting the kind or amount of work you can do?" A possible drawback of such a measure is the possibility that different...

This paper was prepared for a session of the 2009 American Economic Association meeting devoted to examining the views of American economists about the euro and the European Economic and Monetary Union on the tenth anniversary of the euro. I had written an article in 1992 in the Economist and...

This paper examines the impact of school accountability on adult crime and economic self-sufficiency. We employ a unique source of linked administrative data from a Southern state and exploit exogenous variation generated by the state's accountability regime. Our findings indicate that a...

Although fake online customer reviews have become prevalent on platforms such as Amazon, Google, and Facebook, little is known about how these reviews influence consumer behavior. This paper provides the first experimental estimates of the effects of fake reviews on individual demand and...

We model early expectations about the value and technological importance ('quality') of a patented innovation as a latent variable common to a set of four indicators: the number of patent claims, forward citations, backward citations and family size. The model is estimated for four technology...

This paper presents quantitative estimates of the private value of property rights conferred by patent protection for different technology fields and countries of ownership. The measures are derived from parametric estimation of a model of patent renewal, using a new data set on patent renewals...

We study the effect of photo ID laws on voting using a difference-in-differences estimation approach around Rhode Island's implementation of a photo ID law. We employ anonymized administrative data to measure the law's impact by comparing voting behavior among those with drivers' licenses versus...