@article{jsw2019, title = "Exporter heterogeneity and price discrimination: A quantitative view", journal = "Journal of International Economics", volume = "116", pages = "103 - 124", year = "2019", issn = "0022-1996", doi = "https://doi.org/10.1016/j.jinteco.2018.09.011", url = "http://www.sciencedirect.com/science/article/pii/S0022199618304392", author = "Jae Wook Jung and Ina Simonovska and Ariel Weinberger", keywords = "Variable mark-ups, Non-homothetic preferences, Generalized CES, Heterogeneous firms, International trade, Gravity", abstract = "We quantify a general equilibrium model of international trade and pricing-to-market that features firm-level heterogeneity and consumers with non-homothetic preferences—generalized CES (GCES). We demonstrate theoretically that, relative to existing frameworks, the GCES model exhibits features of the data that are essential to conduct quantitative analysis. The framework can reconcile the documented price dispersion across firms and markets, while maintaining consistency with cross-sectional observations on firm productivity, markups, and sales. We estimate the model's parameters to match bilateral trade flows across 66 countries as well as moments from the markup and sales distributions of Chilean firms. The model reconciles both micro and macro facts quantitatively, and yields trade elasticity estimates that are in line with the existing literature. Hence, we conclude that the GCES model constitutes a plausible and parsimonious quantitative workhorse framework that can be used to analyze gains from trade." }