We study the link between tax progressivity and top income shares. Using variation from large-scale Western tax reforms in the 1980s and 1990s and the novel synthetic control method, we find large and lasting boosting impacts on top income shares from the progressivity reductions. Effects are...

The pandemic catalyzed an enduring shift to remote work. To measure and characterize this shift, we examine more than 250 million job vacancy postings across five English-speaking countries. Our measurements rely on a state-of-the-art languageprocessing framework that we fit, test, and refine...

The paper provides an analysis of the recent immigration history of New Zealand and Australia. It starts with a description of the quantitative dimension of immigration: how many immigrants entered the two countries, and what was the contribution of external migration to population growth. Next,...

There are large spatial disparities in unemployment durations across the 1,300 municipalitiesin the Ile-de-France region (Paris Greater Area). In order to characterize these imbalances,we estimate a proportional hazard model stratified by municipality on an exhaustive datasetof all unemployment...

This paper analyzes the factors underlying the evolution of the worldwide distribution of skills and their implications for global inequality. We develop and parameterize a two-sector, two-class, world economy model that endogenizes education and mobility decisions, population growth, and income...

The division of labor between and within countries is driven by two fundamental forces, comparative advantage and increasing returns. We set up a simple Ricardian model with a Marshallian input sharing mechanism to study their interplay. The key insight that emerges is that the interaction...

We exploit the bilateral and skill dimensions from recent data sets of international migration to test for the existence of Zipf's and Gibrat's Laws in the context of aggregate and high-skilled international immigration and emigration using graphical, parametric and non-parametric analysis. The...

I analyze whether reducing geographic distance to high-wage jobs increases access to those employment opportunities. I collect office locations and campus recruiting strategies for over 70 prestigious banking and consulting firms, from 2000 to 2013. Using an event-study framework, I find firms...

We develop a model with two asymmetric countries. Firms choose the number and the location of plants that they operate. The production of each firm increases when trade costs fall. The fall also induces multinationals to repatriate their production into a single country, which is likely to be...

Over many decades, academics, policymakers and governments have been concerned with both the presence of inequalities and the impacts these can have on people when concentrated spatially in urban areas. This concern is especially related to the influence of spatial inequalities on individual...