Market Equilibrium Flashcards
Market Equlibrium
Price mechanism
The system where prices are determined by demand and supply in competitive markets, resulting from the free interaction of buyers and sellers
Signalling
In the event of asymmetic information this is a method used by the seller when the seller has more information, which attempts to convince the buyer that the product is of a good qaulity
Prices as incentives
The ability of prices and changes in prices to convey information to consumers and prdoucers that motivates them to respond by offering them incentives to behave in their best self interest
(firms according to law pf supply and consumers i order of law of demand)
Prices as signals
The ability of prices and changes in price to communicate information to consumers and producers about the existence of excess demand or excess supply, on the basis of which they make economic decisions, which together with prices as incentives lead to an efficient allocation of resources.
Allocative efficiency
An allocation of resources that results in producing the combination and quantity of goods and services mostly preferred by consumers
(Marginal Social benefit = Marginal Social Cost)
Marginal benefit
The extra or additional benefit received from consuming one kore unit of a good
Consumer surplus
Refers to the difference between the highest prices consumers are willing to pay for a good and the price actually paid
Producer Surplus
Refers to the difference between the price received by firms for selling their good and the lowest price they are willing to accept to produce the good
Social Surplus/Community Surplus
The sum of consumers and producer surplus; it is maximum in a competitive market with no market failures
Welfare Loss
Refers to loss of a portion of social surplus that arises when marginal social benefits are not equal to marginal costs
Excess Supply
Extra supply that results when quantity supplied is greater than quantity demanded
Excess Demand
Lack of supply when quantity demanded is greater than quantity supplied
Surplus
Quantity supplied is greater than quantity demanded
Equlibrium Price
The price determined in a market when quantity demanded is equal to quantity supplied and there is no tendency for the price to change.