• The opportunism problem revisited : the case of retailer sales effort 

      Gabrielsen, Tommy Staahl; Johansen, Bjørn Olav (Working paper;30/13, Working paper, 2013-09)
      We study a setting where the opportunism or commitment problem identified by Hart and Tirole (1990) may arise. An upstream monopolist may sell its product to two differentiated downstream retailers. Contract unobservability ...