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  2. Economic surplus - Wikipedia

    en.wikipedia.org/wiki/Economic_surplus

    Business portal. v. t. e. In mainstream economics, economic surplus, also known as total welfare or total social welfare or Marshallian surplus (after Alfred Marshall), is either of two related quantities: Consumer surplus, or consumers' surplus, is the monetary gain obtained by consumers because they are able to purchase a product for a price ...

  3. Williamson tradeoff model - Wikipedia

    en.wikipedia.org/wiki/Williamson_tradeoff_model

    The "tradeoff" in the Williamson model involves a gain in producers' (firms') surplus and a loss in consumers' surplus. Thus, in focusing the analysis on total surplus, it neglects distributional issues and treats changes in both consumers' and producers' welfare symmetrically. However, anti-trust policy as actually practiced in many countries ...

  4. Deadweight loss - Wikipedia

    en.wikipedia.org/wiki/Deadweight_loss

    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.

  5. Price support - Wikipedia

    en.wikipedia.org/wiki/Price_support

    The benefit to producers of the price support is equal to the gain in producer surplus (represented in blue). 1800 - 1250 = $550; The cost to consumers of the price support is equal to the loss in consumer surplus (represented in red). 1250 - 800 = $450

  6. Tax wedge - Wikipedia

    en.wikipedia.org/wiki/Tax_wedge

    Tax wedge. Graph of a tax wedge, showing consumer and producer incidence. The tax wedge is the deviation from the equilibrium price and quantity ( and , respectively) as a result of the taxation of a good. Because of the tax, consumers pay more for the good ( ) than they did before the tax, and suppliers receive less for the good ( ) than they ...

  7. Price discrimination - Wikipedia

    en.wikipedia.org/wiki/Price_discrimination

    The marginal consumer is the one whose reservation price equals the marginal cost of the product, meaning that the social surplus is entirely from producer surplus (no consumer surplus). If the seller engages in first degree price discrimination, then they will produce more product than they would with no price discrimination.

  8. Economic equilibrium - Wikipedia

    en.wikipedia.org/wiki/Economic_equilibrium

    In economics, economic equilibrium is a situation in which economic forces such as supply and demand are balanced and in the absence of external influences the (equilibrium) values of economic variables will not change. For example, in the standard text perfect competition, equilibrium occurs at the point at which quantity demanded and quantity ...

  9. Excess supply - Wikipedia

    en.wikipedia.org/wiki/Excess_supply

    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 ...