1. Essays in Firms Heterogeneity and International Trade Open Access Author: Demidova, Svetlana Alexandrovna Title: Essays in Firms Heterogeneity and International Trade Graduate Program: Economics Keywords: rules of originheterogeneous firmsmonopolistic competitionproductivity improvements File: Download Demidova_Thesis.pdf Committee Members: Kala Krishna, Committee Chair/Co-ChairBee Yan Roberts, Committee MemberAndres Rodriguez Clare, Committee MemberJames R. Tybout, Committee MemberAbdullah Yavas, Committee Member