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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 measure of total gains from trade is the sum of consumer surplus and producer profits or, more roughly, the increased output from specialization in production with resulting trade. [8] Gains from trade may also refer to net benefits to a country from lowering barriers to trade such as tariffs on imports. [9]
The maximization of producer surplus can in some cases reduce consumer surplus. [15] Some forms of producer profit maximization are considered anti-competitive practices and are regulated by competition law. [15] Maximization of short-term producer profit can reduce long-term producer profit, which can be exploited by predatory pricing such as ...
If the consumer is considered to be the building, then a consumer surplus goes to the inhabitants. A seller facing a downward sloping demand curve that is convex to the origin always obtains higher revenues under price discrimination than under uniform pricing. In the top diagram, a single price () is
An effective, binding price floor, causing a surplus (supply exceeds demand) By contrast, in the second graph, the dashed green line represents a price floor set above the free-market price. In this case, the price floor has a measurable impact on the market. It ensures prices stay high, causing a surplus in the market.
This means that the amount of consumer surplus, the area below the demand curve and above the price, will be lower. [4] The change in overall social surplus of the market depends on whether the increase in producer surplus due to lower production costs is larger or smaller than the fall in consumer surplus due to higher prices. Note that it is ...
The effect of this type of tax can be illustrated on a standard supply and demand diagram. Without a tax, the equilibrium price will be at Pe and the equilibrium quantity will be at Qe. After a tax is imposed, the price consumers pay will shift to Pc and the price producers receive will shift to Pp. The consumers' price will be equal to the ...