@Article{delacroix-doepke-mokyr-2018,
  author  = {David de la Croix and Matthias Doepke and Joel Mokyr},
  title   = {Clans, Guilds, and Markets: Apprenticeship Institutions and Growth in the Pre-Industrial Economy},
  journal = {Quarterly Journal of Economics},
  year    = {2018},
  volume  = {133},
  pages   = {1--70},
  month   = {February},
}