1. Allen, D. W. 1991a. “What Are Transaction Costs?” Research in Law and Economics 14: 1–18.
2. —. 1991b. “A Review of The Firm, The Market, and The Law” By R.H. Coase. Canadian Journal of Economics (August): 740–743.
3. —. 1992. “Marriage and Divorce: Comment.” American Economic Review 82(June): 679–685.
4. Barzel, Y. 1985. “Transaction Costs: Are They Just Costs?” Journal of Institutional and Theoretical Economics 141(March): 4–16.
5. Cheung, S. 1992. “On the New Institutional Economics.” In Lars Werin and Hans Wijkander, eds., Contract Economics Cambridge, Mass.: Blackwell.