Do Firms Really Produce at Output Levels Where MC = MR?
A Pillar of Economic Theory Under Scrutiny In the core of microeconomic theory lies a deceptively simple rule: a profit-maximizing firm will produce at the level of output where marginal cost (MC) equals marginal revenue (MR). This principle underpins both competitive and monopolistic market models, serving as the analytical heart of firm-level decision-making in textbooks.…