Import Competition, Product Differentiation and Mark-Ups: Microeconomic Evidence from Swedish Manufacturing in the 1990s
The paper examines how import competition from different origins and the presence of product differentiation affect market power of Swedish manufacturing firms during the 1990s. The general finding is that imports from both European countries and other high income countries outside Europe impose disciplinary effects on price-cost margin of Swedish manufacturing firms.
Link
http://www.fief.se/publications/working_paper/pdf/WP195.pdf