Morand, Pierre-Henri; Thomas, Lionel - In: Recherches économiques de Louvain 72 (2006) 2, pp. 129-155
<marquage typemarq="gras"/> In this paper, we design the optimal procurement mechanisms when bidders are privately informed on efficiency and on observable but neither verifiable nor contractible quality. We show that most of the optimal procurement institutions are mixed procedure implying both separation and pooling....