Note that I assume both buyer and seller observe the seller's type. I therefore do not consider the possibility that the buyer learns something regarding the seller's type by observing the seller's performance. Such learning effects facilitated by restricting the buyer's right to terminate have been discussed by Schwartz and Scott (1991). 6 The seller's cost can also be viewed as a random type for the buyer-seller match affecting only the supply side. Once this type is realized after the contract has been entered, it remains unchanged over the entire duration of the contractual relationship.