@TechReport{CEPII:2009-14,
author={Matthieu Crozet and Keith Head and Thierry Mayer},
title={Quality Sorting and Trade: Firm-Level Evidence for French Wine},
year=2009,
month=July,
institution={CEPII},
type={Working Papers},
url={https://www.cepii.fr/CEPII/en/publications/wp/abstract.asp?NoDoc=1274},
number={2009-14},
}