With respect to Avner Greif, how do you have trade without a reliable system of law? How effective are substitutes for law at enabling trade? And what are the consequences of developing a legal system that provides a secure umbrella for the protection of property rights and the enforcement of contracts?

  • Avner Greif (1989), "Reputation and Coalitions in Medieval Trade: Evidence on the Maghribi Traders," _Journal of Economic History_ 49:4 (December), pp. 857-882 <http://tinyurl.com/dl20090112g>