C. What distinguishes the Stackelberg oligopoly from other oligopoly models? The main way that the Stackelberg oligopoly model varies from other oligopoly modelslike the Cournot and Bertrand modelsis in the premise that businesses in the market make decisions at different times. To summarize, the Stackelberg oligopoly model is unique in that it emphasizes the strategic advantage of being the first entrant in the market and incorporates a sequential decision-making process. D. What distinguishes the Bertrand oligopoly from other oligopoly models? Customers have complete information and no transaction costs, while businesses sell identical goods at a fixed marginal cost. P=MC, the result of perfect competition, is the result of price wars