@TechReport{CEPII:2020-15,
  author={Tamara Gurevitch and  Peter R. Herman and Farid Toubal and  Yoto Yotov},
  title={One Nation, One Language? Domestic Language Diversity, Trade and Welfare},
  year=2020,
  month=December,
  institution={CEPII},
  type={Working Papers},
  url={https://www.cepii.fr/CEPII/fr/publications/wp/abstract.asp?NoDoc=12719},
  number={2020-15},
  
}