Linear panel models, and the "event-study plots" that often accompany them, are popular tools for learning about policy effects. We discuss the construction of event-study plots and suggest ways to make them more informative. We examine the economic content of different possible identifying...

Combining eight years of panel data with an event study approach, we show that rural Chinese women's labor supply falls for one year following the birth of a daughter before returning to their pre-birth levels. The negative impact of the birth of a son on women's labor supply is much larger in...

While major stock market indices are followed by large monetary investments, we document that membership decisions for the S&P 500 index have a nontrivial amount of discretion. We show that firms' purchases of S&P ratings appear to improve their chance of entering the index (but purchases of...

We study treatment-effect estimation, with a panel where groups may experience multiple changes of their treatment dose. We make parallel trends assumptions, but do not restrict treatment effect heterogeneity, unlike the linear regressions that have been used in such designs. We extend the...

In the mid-19th century, the urban milk supply in the United States was regularly skimmed or diluted with water, reducing its nutritional value. At the urging of public health experts, cities across the country hired milk inspectors, who were tasked with collecting and analyzing milk samples...

In power-oriented societies, academia may not be immune to the influence of power. This paper studies the power-publication link by applying an event-study strategy to a panel dataset of the publication and biographical information of deans of economics schools in Chinese universities. We find...

Labor market search-and-matching models posit supply-side responses to minimum wage increases that may lead to improved matches and lessen or even reverse negative employment effects. Yet there is no empirical evidence on this crucial assumption. Using event study analysis of recent minimum wage...

Central banks unexpectedly tightening policy rates often observe the exchange value of their currency depreciate, rather than appreciate as predicted by standard models. We document this for Fed and ECB policy days using event-studies and ask whether an information effect, where the public...

This paper uses an event study approach to estimate the effect of capital gains taxation on realizations at the state level, and then develops a framework for determining revenue-maximizing rates at the federal level. We find that the elasticity of revenues with respect to the tax rate over a...

We provide new estimates of the separations elasticity, a proximate determinant of the labor supply facing a firm with respect to hourly wage, using matched Oregon employer-employee data. Existing estimates using individual wage variation may be biased by mismeasured wages and use of wage...