Budget set
In economics, a budget set, or the opportunity set facing a consumer, is the set of all possible consumption bundles that the consumer can afford taking as given the prices of commodities available to the consumer and the consumer's income. Let the number of commodities available to the consumer in an economy be finite and equal to . Thus, for commodity amounts , also known as consumption plans which should not exceed the income,[1] with associated prices and consumer income , the budget set is defined as
- ,
where the consumption set is taken to be . It is typically assumed that and , in which case is also known as the Walrasian, or competitive, budget set.
The budget set is bounded above by a -dimensional budget hyperplane characterized by the equation , which in the two-good case corresponds to the budget line. Graphically, the budget set is the subset of that contains all the consumption bundles that lie on or below the budget hyperplane.
Given the framework described above, Walrasian budget sets are convex and compact.
Other sources of wealth, including stocks, savings, pensions, profit shares, etc., are not included in the income described above. The income described above are also known as initial wealth.[1]
The demand set is the set that the consumer chooses to go with based on the preferences from the budget set.[1]
References
- ^ a b c Böhm, Volker; Haller, Hans (2017), "Demand Theory", The New Palgrave Dictionary of Economics, London: Palgrave Macmillan UK, pp. 1–14, doi:10.1057/978-1-349-95121-5_539-2, ISBN 978-1-349-95121-5, retrieved 2021-12-09
- Mas-Colell, Andreu; Whinston, Michael D.; Green, Jerry R. (1995). Microeconomic Theory. New York: Oxford University Press. pp. 9–11. ISBN 0-19-507340-1.
- v
- t
- e
- Aggregation
- Budget set
- Consumer choice
- Convexity and non-convexity
- Cost
- Average
- Marginal
- Opportunity
- Implicit
- Social
- Sunk
- Transaction
- Cost–benefit analysis
- Deadweight loss
- Distribution
- Economies of scale
- Economies of scope
- Elasticity
- Equilibrium
- Exchange
- Externality
- Firms
- Goods and services
- Goods
- Service
- Household
- Income–consumption curve
- Information
- Indifference curve
- Intertemporal choice
- Market
- Market failure
- Market structure
- Pareto efficiency
- Preferences
- Price
- Production
- Profit
- Public goods
- Rationing
- Rent
- Returns to scale
- Risk aversion
- Scarcity
- Shortage/Excess supply
- Substitution effect
- Surplus
- Social choice
- Supply and demand
- Demand/Law of demand
- Supply/Law of supply
- Uncertainty
- Utility
- Wage
- Behavioral
- Business
- Computational
- Development
- Statistical decision theory
- Econometrics
- Engineering economics
- Civil engineering economics
- Evolutionary
- Experimental
- Game theory
- Green
- Industrial organization
- Institutional
- Labor
- Law
- Managerial
- Mathematical
- Microfoundations of macroeconomics
- Operations research
- Optimization
- Welfare
- Business portal
- Category
This article related to microeconomics is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e