Introduction In economics, management, politics, and everyday life, people often continue investing in something long after it has stopped producing value. The reason is rarely logic. More often, it is emotional attachment to what has already been sacrificed. This phenomenon is known as sunk cost . A sunk cost is any resource already consumed that cannot be retrieved. The resource may be money, time, labor, emotion, reputation, political capital, or opportunity. Once spent, it belongs to the past. Rationally, future decisions should depend only on future benefits and future costs. Yet human beings frequently allow previous sacrifices to dominate present judgment. The danger appears when individuals or organizations refuse to abandon failing paths because they have “already invested too much.” Economists describe this as the sunk cost fallacy —the irrational continuation of an activity because of prior commitment rather than future value . A strategic make sense captures this p...
The Strategic Transformation of Product Differentiation: Dorfman and Steiner’s Algebraic Revolution in Quality Theory
Introduction The mid-twentieth century marked a profound transformation in economic methodology and competitive theory. During this period, economists increasingly recognized that firms do not compete solely through price reductions; they also compete through product quality, branding, advertising, design, and consumer perception. This broader understanding of competition reshaped industrial economics and strategic management . Among the most influential contributions to this transformation was the 1954 article “Optimal Advertising and Optimal Quality” by Robert Dorfman and Peter Otto Steiner, published in the American Economic Review . Their work represented far more than a technical refinement of existing theory. It symbolized a methodological revolution: the transition from diagrammatic reasoning to algebraic modeling in the analysis of product differentiation and non-price competition. By introducing a formal “quality variable” into the firm’s profit function, Dorfman and Steine...