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  2. Economic efficiency - Wikipedia

    en.wikipedia.org/wiki/Economic_efficiency

    Productive efficiency: no additional output of one good can be obtained without decreasing the output of another good, and production proceeds at the lowest possible average total cost. These definitions are not equivalent: a market or other economic system may be allocatively but not productively efficient, or productively but not allocatively ...

  3. Elasticity (economics) - Wikipedia

    en.wikipedia.org/wiki/Elasticity_(economics)

    For example, if the price elasticity of the demand of a good is −2, then a 10% increase in price will cause the quantity demanded to fall by 20%. Elasticity in economics provides an understanding of changes in the behavior of the buyers and sellers with price changes.

  4. Rational choice model - Wikipedia

    en.wikipedia.org/wiki/Rational_choice_model

    Social agents act according to their "feel for the game" (the "feel" being, roughly, habitus, and the "game" being the field). [ 38 ] Other social scientists, inspired in part by Bourdieu's thinking have expressed concern about the inappropriate use of economic metaphors in other contexts, suggesting that this may have political implications.

  5. Economic equilibrium - Wikipedia

    en.wikipedia.org/wiki/Economic_equilibrium

    For example, in the standard text perfect competition, equilibrium occurs at the point at which quantity demanded and quantity supplied are equal. [ 1 ] Market equilibrium in this case is a condition where a market price is established through competition such that the amount of goods or services sought by buyers is equal to the amount of goods ...

  6. Scarcity - Wikipedia

    en.wikipedia.org/wiki/Scarcity

    A scarce good is a good that has more quantity demanded than quantity supplied at a price of $0. The term scarcity refers to the possible existence of conflict over the possession of a finite good. One can say that, for any scarce good, someone's ownership and control excludes someone else's control. [20]

  7. Marginal utility - Wikipedia

    en.wikipedia.org/wiki/Marginal_utility

    Marshall was the second-generation marginalist whose work on marginal utility came most to inform the mainstream of neoclassical economics, especially by way of his Principles of Economics, the first volume of which was published in 1890. Marshall constructed the demand curve with the aid of assumptions that utility was quantified, and that the ...

  8. Free-rider problem - Wikipedia

    en.wikipedia.org/wiki/Free-rider_problem

    These problems with the club-good mechanism arise because the underlying marginal cost of giving the good to more people is low or zero, but because of the limits of price discrimination, those who are unwilling or unable to pay a profit-maximizing price do not gain access to the good. If the costs of the exclusion mechanism are not higher than ...

  9. Economic inequality - Wikipedia

    en.wikipedia.org/wiki/Economic_inequality

    Economic inequality is an umbrella term for a) income inequality or distribution of income (how the total sum of money paid to people is distributed among them), b) wealth inequality or distribution of wealth (how the total sum of wealth owned by people is distributed among the owners), and c) consumption inequality (how the total sum of money spent by people is distributed among the spenders).