Background
Sunk costs are expenditures that have already been incurred and cannot be recovered. Once made, these costs cannot be refunded or taken back, they are inherently irreversible. This concept plays a crucial role in decision-making processes within an enterprise.
Historical Context
The concept of sunk costs has long been recognized in economic theory, dating back to early analyses by classical economists, but gained more explicit emphasis in more modern economic frameworks concerning business decisions and market structures.
Definitions and Concepts
Sunk costs refer to the parts of the costs of an enterprise that remain unrecovered even if the business ceases operations, no matter how long the planning horizon. They often include large item investments such as the construction of infrastructure or the development of specialized industrial processes. This inflexibility contributes to economic phenomena such as hysteresis and helps explain the scarcity of contestable markets.
Major Analytical Frameworks
Classical Economics
Classical economists acknowledged the presence of irrecoverable expenses but did not extensively formalize the concept of sunk costs as a separate category in their analysis.
Neoclassical Economics
Neoclassical economics formally differentiates sunk costs from variable costs. It emphasizes the importance of disregarding sunk costs in future decision-making since these are non-retrievable expenses.
Keynesian Economics
Keynesian economics primarily focuses on aggregate demand and fiscal policy but does regard the presence of sunk costs in explaining uncertainty and decision-making in the economy.
Marxian Economics
Marxist analysis can consider sunk costs particularly in the context of capital investment and the potential devaluation of fixed capital when markets or industries evolve.
Institutional Economics
Sunk costs are highlighted in institutional economics as key barriers to entry impacting competitive landscapes and the flow of capital investment.
Behavioral Economics
Behavioral economics often observes the “sunk cost fallacy,” where decision-makers irrationally consider sunk costs in their choices, leading to non-optimal decision-making.
Post-Keynesian Economics
Post-Keynesian economists emphasize the role of forward-looking expectations in decision-making and how inherent sunk costs can shape long-term strategies and investment choices.
Austrian Economics
Austrian economists reflect on sunk costs in the context of entrepreneurial judgment and the dynamic nature of market processes.
Development Economics
Sunk costs in development economics pertain mostly to large infrastructure projects and industrial policies within an economic development framework.
Monetarism
Monetarists largely focus less directly on sunk costs, but these arise implicitly in considerations of long-term fixed investments and their impacts on the money supply and price stability.
Comparative Analysis
Sunk costs influence decision-making processes differently across the various schools of economic thought, but widely explain the rigidity they provide within market entry and exit, deterrence of competitively open markets, and their contribution to sustain inertial effects in the economy.
Case Studies
Several historical and practical case studies can be considered to see the impact of sunk costs, such as the construction of major industrial plants, investments in telecommunications infrastructure, and the development of pharmaceutical drugs.
Suggested Books for Further Studies
- “Managerial Economics” by William F. Samuelson and Stephen G. Marks
- “Applied Economics” by Thomas Sowell
- “The Economics of Imperfect Markets” edited by Giorgio Calcagnini and Enrico Saltari
- “Behavioral Economic Analysis: Performances and Innovations” by Ananish Chaudhuri
Related Terms with Definitions
- Hysteresis: The dependence of the state of a process on its history. In economics, hysteresis describes how past economic events can influence the present and future state of the economy, longer than effects observable in short-term dynamics.
- Contestable Markets: A concept in economic theory where an industry’s market structure approaches a perfectly competitive situation because the market has no barriers to entry or exit. Real-world sunk costs often impede the emergence of fully contestable markets.
