6Max Weber, Economy and Society, Berkeley, California: University of California Press, 1978,p. 882.
7Douglass North, Institutions, Institutional Change and Economic Performance ,New York: Cambridge U- niversity Press, 1990, p. 54.
8Douglass North, Structure and Change in Economic History 6 ( 1981 ).
9Avner Grief, Contract Enforceability and Economic Institutions in Early Trade: The Maghribi Traders' Co alition, 83 The American Economic Review 525 (1993).
10Michael Trebilcock and Paul - Erik Veel, Property Rights and Development: The Contingent Case for Formalization, 30 University of Pennsylvania Journal of International Law 397 (2008).