The inverse market demand for a homogeneous good is given by p =
1 – Q, where p denotes the price and Q denotes the total quantity
of the good. The good is supplied by three quantity-setting firms
(Firm 1, Firm 2, and Firm 3) competing à la Cournot, each producing
at a constant marginal cost equal to c > 0. a) Derive the best
reply of Firm 1. b) Compute the Cournot-Nash equilibrium quantity
and profits of Firm 1....