In a full-information, zero transactions costs world, the degree of protection afforded to an entitlement does not affect the likelihood of efficient trade. In reality, imperfect information is often inevitable. Specifically, a party will usually have incomplete information about fairness norms...

In this paper, we show that, in 1961 and before he had read "The Problem of Social Cost", Calabresi reached exactly the same conclusions as the one reached by Coase and summarized by Stigler as the "Coase theorem" but he believed that this result was valid only in the theoretical world of the...