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The consumer's surplus is highest at the largest number of units for which, even for the last unit, the maximum willingness to pay is not below the market price. Consumer surplus can be used as a measurement of social welfare, shown by Robert Willig. [8] For a single price change, consumer surplus can provide an approximation of changes in welfare.
In economics, an excess supply, economic surplus [1] market surplus or briefly supply is a situation in which the quantity of a good or service supplied is more than the quantity demanded, [2] and the price is above the equilibrium level determined by supply and demand. That is, the quantity of the product that producers wish to sell exceeds ...
A price floor is a government- or group-imposed price control or limit on how low a price can be charged for a product, [1] good, commodity, or service. It is one type of price support ; other types include supply regulation and guarantee government purchase price.
Say's law states that in a market economy, goods and services are produced for exchange with other goods and services—"employment multipliers" therefore arise from production and not exchange alone—and that in the process a sufficient level of real income is created to purchase the economy's entire output, due to the truism that the means ...
The producer surplus always decreases, but the consumer surplus may or may not increase; however, the decrease in producer surplus must be greater than the increase, if any, in consumer surplus. Deadweight loss can also be a measure of lost economic efficiency when the socially optimal quantity of a good or a service is not produced.
If a consumer is willing to buy a good, it implies that the customer places a higher value on the good than the market price. The difference between the value to the consumer and the market price is called "consumer surplus". [3] It is easy to see situations where the actual value is considerably larger than the market price: purchase of ...
The simplest version of the model compares a situation where initially the market is competitive to a situation where the post-merger market is not. However, if initially price exceeds marginal cost (i.e. the market is not competitive), further increases in price have a "first order" effect on consumer surplus (graphically, they are trapezoids ...
Consumer surplus need not exist, for example in monopolistic markets where the seller can price above the market clearing price. Alternatively, should fixed costs or economies of scale raise the marginal cost of adding more consumers higher than the marginal profit from selling more product, consumer surplus may be captured by the seller. This ...