@TechReport{CEPII:2009-03,
  author={Isabelle Méjean and Cyrille Schwellnus},
  title={Price Convergence in the European Union: Within Firms or Composition of Firms?},
  year=2009,
  month=March,
  institution={CEPII},
  type={Working Papers},
  url={https://www.cepii.fr/CEPII/fr/publications/wp/abstract.asp?NoDoc=1177},
  number={2009-03},
  
}