Cournot–Stackelberg endogeneity to oligopoly, and show that it additionally includes Bertrand in the generalized model. This … that forward buying input induces a “Cournot–Stackelberg endogeneity” (both Cournot and Stackelberg outcomes may result in … equilibrium) and forward selling output induces a convergence to the Bertrand solution. I analyze the generalized model where …