Innovative startups are frequently acquired by large incumbent firms. On the one hand, these acquisitions provide an incentive for startup creation and may transfer ideas to more efficient users. On the other hand, incumbents might acquire startups just to "kill" their ideas, and acquisitions...

This paper evaluates the aggregate impact of air pollution regulations introduced by the US Environmental Protection Agency in the early 2000s. We first provide regression evidence on the regulations' effects across industries and local labor markets. We then use these results to calibrate a...

This paper shows how to combine microeconometric evidence on the effects of environmental policy with a macroeconomic model, accounting for general equilibrium spillovers that have mostly been ignored in the literature. To this end, we study the effects of a recent US air pollution policy. We...