Cournot and Bertrand equilibria are the same under certain market conditions. Specifically, when firms are identical and market demand is linear, the Cournot and Bertrand models result in the same equilibrium outcomes as firms will produce the same efficient quantity. In Cournot, firms choose quantities assuming rivals' quantities are fixed, while in Bertrand firms choose prices assuming rivals' prices are fixed. However, with identical firms and linear demand, these assumptions lead to the same equilibrium.