Money, Barter, and the Optimality of Legal Restrictions. Engineer, M. & Bernhardt, D. Journal of Political Economy, 99(4):743, 1991. doi: 10.1086/261777
Money, Barter, and the Optimality of Legal Restrictions [link]Paper  bibtex   
@article{Engineer1991,
  added-at = {2008-04-24T23:09:04.000+0200},
  author = {Engineer, Merwan and Bernhardt, Dan},
  biburl = {http://www.bibsonomy.org/bibtex/2d4e49a1389d342965a928260f2f4e06b/smicha},
  day = 01,
  interhash = {b284cfb31c480f6fa36252cafa9ea436},
  intrahash = {d4e49a1389d342965a928260f2f4e06b},
  journal = {Journal of Political Economy},
  keywords = {imported},
  month = Jan,
  note = {doi: 10.1086/261777},
  number = 4,
  pages = 743,
  timestamp = {2008-04-24T23:09:31.000+0200},
  title = {Money, Barter, and the Optimality of Legal Restrictions},
  url = {http://www.journals.uchicago.edu/doi/abs/10.1086/261777},
  volume = 99,
  year = 1991
}

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