Background
In economics, a “feasible set” represents an essential concept that encompasses all possible allocations or plans that adhere to certain predefined constraints within an economic model. This term is widely applicable across different areas of economic study, including consumer choice theory, production theory, and general equilibrium theory.
Historical Context
The concept of the feasible set emerged prominently with the development of modern microeconomics, tying closely with works on consumer choice and the general equilibrium theory in the early 20th century. Notable contributions by economists such as Léon Walras and Vilfredo Pareto expanded the understanding of constraints in an economy and how they shape the sets of possible allocations.
Definitions and Concepts
The “feasible set” refers to:
- General Definition: The set of allocations that satisfies all the constraints in an economic model.
- Consumer Context: For a consumer, the feasible set includes all consumption plans fitting within the individual’s budget constraint.
- Exchange Economy: In an exchange economy, the feasible set can be visually represented using an Edgeworth box, illustrating all combinations of goods that both parties can mutually benefit from, considering their endowments and preferences.
Major Analytical Frameworks
Classical Economics
Classical economists concentrated primarily on production capabilities and constraints within an economy, indirectly touching on the feasible set through ideas of production possibilities and efficient allocation.
Neoclassical Economics
Neoclassical economics centralizes the concept of the feasible set in consumer choice theory, examined through budget constraints. By applying utility maximization, consumers typically choose a bundle within their feasible set.
Keynesian Economic
While focusing largely on macroeconomic concerns, Keynesian economics incorporates feasible sets when considering policy constraints and their implications on aggregate supply and demand.
Marxian Economics
Marxian theory discusses constraints in terms of class struggles and inherent limitations in capitalist modes of production, with feasible sets being argued on different principles like labor value theory.
Institutional Economics
Institutional economics may explore feasible sets on the basis of cultural and societal constraints, making an interdisciplinary approach relevant to institutional norms.
Behavioral Economics
Behavioral economics challenges traditional definitions, stretching feasible sets by incorporating often irrational human behaviors and psychological constraints.
Post-Keynesian Economics
Post-Keynesian focuses on macro-level constraints such as demand-driven constraints affecting feasible sets for economies and specific industries.
Austrian Economics
In Austrian economics, feasible sets relate closely to individual choice, based on subjective values, and time preferences reflecting dynamic constraints over time.
Development Economics
Feasible sets in development economics emerge when assessing constraints faced by developing economies including resources, technology, and institutional frameworks necessary for growth.
Monetarism
Monetarists examine feasible sets in terms of aggregate constraints applied by monetary policy, influencing feasible outcomes in broader macroeconomic models.
Comparative Analysis
Each economic theory analyzes feasible sets through different lenses—consistent budget constraints in neoclassical, systemic socio-economic constraints in Marxian, or behavioral deviations in behavioral economics—all contributing nuanced understandings of what is allowable within any given set of constraints.
Case Studies
Case studies analyze consumer behavior, firm production choices, policy impacts, and national economic developments within the confines of their specific feasible sets. For instance, using an Edgeworth box diagram to explore trading behaviors between two consumers.
Suggested Books for Further Studies
- “Microeconomic Theory” by Andreu Mas-Colell, Michael D. Whinston, and Jerry R. Green
- “An Inquiry into the Nature and Causes of the Wealth of Nations” by Adam Smith
- “Principles of Economics” by Alfred Marshall
- “Capital, Volume I” by Karl Marx
- “An Evolutionary Theory of Economic Change” by Richard R. Nelson, Sidney G. Winter
Related Terms with Definitions
- Constraint: A limitation or condition that must be satisfied within a model.
- Budget Constraint: The constraint that consumer expenditures must equal income.
- Edgeworth Box: A diagram used in microeconomics to show the distribution of resources for two individuals or economies.
- Pareto Efficiency: An allocation of resources from which it is impossible to make any one individual better off without making at least one individual worse off.
- General Equilibrium: A condition where supply and demand are balanced across all markets in the economy.