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  2. Pigouvian tax - Wikipedia

    en.wikipedia.org/wiki/Pigouvian_tax

    When the marginal social interest diverges from the marginal private interest, the industrialist has no incentive to internalize the marginal social cost. Conversely, Pigou argues, if an industry produces a marginal social benefit, the individuals receiving the benefit have no incentive to pay for that service.

  3. Marginal cost - Wikipedia

    en.wikipedia.org/wiki/Marginal_cost

    The marginal private cost shows the cost borne by the firm in question. It is the marginal private cost that is used by business decision makers in their profit maximization behavior. Marginal social cost is similar to private cost in that it includes the cost of private enterprise but also any other cost (or offsetting benefit) to parties ...

  4. Lindahl tax - Wikipedia

    en.wikipedia.org/wiki/Lindahl_tax

    In the Lindahl Model, Dt represents the aggregate marginal benefit curve, which is the sum of Da and Db---the marginal benefits for the two individuals in the economy. In a Lindahl equilibrium, the optimal quantity of the public good will be where the social marginal benefit intersects the marginal cost (point P).

  5. Externality - Wikipedia

    en.wikipedia.org/wiki/Externality

    One of the curves is the private cost that consumers pay as individuals for additional quantities of the good, which in competitive markets, is the marginal private cost. The other curve is the true cost that society as a whole pays for production and consumption of increased production the good, or the marginal social cost .

  6. Marginal cost of public funds - Wikipedia

    en.wikipedia.org/wiki/Marginal_cost_of_public_funds

    The applications of the marginal cost of public funds include the Samuelson condition for the optimal provision of public goods and the optimal corrective taxation of externalities in public economic theory, the determination of tax-smoothing policy rules in normative public debt analysis and social cost-benefit analysis common in practical ...

  7. Marginal abatement cost - Wikipedia

    en.wikipedia.org/wiki/Marginal_abatement_cost

    Marginal abatement costs are also called the "marginal cost" of reducing such environmental negatives. Although marginal abatement costs can be negative, such as when the low carbon option is cheaper than the business-as-usual option, marginal abatement costs often rise steeply as more pollution is reduced. In other words, it becomes more ...

  8. Social cost - Wikipedia

    en.wikipedia.org/wiki/Social_cost

    Mathematically, social marginal cost is the sum of private marginal cost and the external costs. [3] For example, when selling a glass of lemonade at a lemonade stand, the private costs involved in this transaction are the costs of the lemons and the sugar and the water that are ingredients to the lemonade, the opportunity cost of the labor to combine them into lemonade, as well as any ...

  9. Allocative efficiency - Wikipedia

    en.wikipedia.org/wiki/Allocative_efficiency

    The demand curve coincides with the marginal utility curve, which measures the (private) benefit of the additional unit, while the supply curve coincides with the marginal cost curve, which measures the (private) cost of the additional unit. In a perfect market, there are no externalities, implying that the demand curve is also equal to the ...