We examine the relationship between large firms and the rising profit share in a model that features oligopolistic competition and consumer heterogeneity. Conditional on the sales distribution, the presence of consumer heterogeneity increases the profit share because it increases firm-level...

We examine the relationship between large firms and the rising profit share in a model that features oligopolistic competition and consumer heterogeneity. Conditional on the sales distribution, the presence of consumer heterogeneity increases the profit share because it increases firm-level...

We study the ability of firms of various sizes to cater to the taste of consumers who differ in their geographic location, store choice, and type or purchase history. Using data on purchases at the household-barcode level from Nielsen, we find that heterogeneity across consumer segments accounts...

We investigate whether trade liberalization encourages Chinese student enrollment in US universities. We focus on China's accession to the World Trade Organization and show that Chinese cities more exposed to this trade liberalization episode sent more students to US universities. Results...