In the COVID-19 pandemic, governments have, among other measures, mandated the use of COVID certificates to prove vaccination, recovery or a recent negative test, and have required individuals to show certificates to access shops, restaurants, and education or workplaces. While arguments for and...

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 studies the impact of globalization on intergenerational income mobility. Exploiting U.S. data, we find that stronger trade exposure at the commuting zone level lowers the intergenerational income mobility of residents. In particular, higher exposure to Chinese import competition...

This paper estimates the effects of immigration on wages of native workers at the national U.S. level. Following Borjas (2003) we focus on national labor markets for workers of different skills and we enrich his methodology and refine previous estimates. We emphasize that a production function...

There exists a growing body of literature which looks at export decisions made by firms. Most studies focus on developed countries and do not explore whether different behavioral patterns prevail over the firm size distribution. This paper aims at filling this gap in the literature by analyzing...

We study how the city system is affected by the possibility for the members of the same cultural diaspora to interact across different cities. In so doing, we propose a simple two- city model with two mobile cultural groups. A localized externality fosters the productivity of individuals when...