When combined with the logical notion of partially interpreted functions, many nonparametric results in econometrics and statistics can be understood as statements about semi-algebraic sets. Tarski's quantifier elimination (QE) theorem therefore guarantees that a universal algorithm exists for...

A new survey of 745 small businesses shows little change in the size distribution of businesses between 2012 and 2016, except among businesses with 40-74 employees, in a way that is closely related to whether they offer health insurance coverage. Using measures of both size and voluntary...

This paper revisits Peltzman (1973) in light of two recent opportunities to quantitatively assess tradeoffs in drug regulation. First, reduced regulatory barriers to drug manufacturing associated with the 2017 reauthorization of Generic Drug User Fee Amendments were followed by significantly...

Marginal prices fell, and disposable incomes increased, for drug and alcohol consumers during the pandemic. Most of the amount, timing, and composition of the 240,000 deaths involving alcohol and drugs since early 2020 can be explained by income effects and category-specific price changes. For...

Every year has large demand and supply shifts associated with the seasons, regardless of the phase of the business cycle. Based on measures dating back to the 1940s, the seasonal shifts reject the hypotheses that demand shifts affect employment outcomes significantly more in recession years than...

Information technology has already transformed some areas of our lives, and has the prospect for transforming other sectors. This paper is about economic behaviors that anticipate technical progress, and how they may describe the housing price and construction boom of 2000-2006 and the bust...

Factor supply increases (depresses) output for many of the same reasons that the government spending multiplier might be less (greater) than one. Data from three 2008-9 recession episodes - the labor supply shifts associated with the seasonal cycle, the 2009 federal minimum wage hike, and the...

Federal mortgage modification initiatives, targeting millions of borrowers, are intended to prevent foreclosures of underwater home mortgages. Those initiatives discourage principal reductions in favor of interest reductions, despite the possibility that the former would be a more durable...

The aggregate neoclassical growth model - with a labor income tax or "labor market distortion" that began growing at the end of 2007 as its only impulse - produces time series for aggregate labor usage, consumption, investment, and real GDP that closely resemble actual U.S. time series. Of...

This paper uses the theories of price discrimination and optimal taxation to investigate effects of underwater mortgages on foreclosures and the incentives to earn income, and the degree to which those effects are shaped by public policy. I find that the federal government's means-tested...