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  2. 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).

  3. Marginal distribution - Wikipedia

    en.wikipedia.org/wiki/Marginal_distribution

    A marginal probability can always be written as an expected value: = () = ⁡ [()]. Intuitively, the marginal probability of X is computed by examining the conditional probability of X given a particular value of Y , and then averaging this conditional probability over the distribution of all values of Y .

  4. Copula (statistics) - Wikipedia

    en.wikipedia.org/wiki/Copula_(statistics)

    In probability theory and statistics, a copula is a multivariate cumulative distribution function for which the marginal probability distribution of each variable is uniform on the interval [0, 1]. Copulas are used to describe/model the dependence (inter-correlation) between random variables . [ 1 ]

  5. Principle of marginality - Wikipedia

    en.wikipedia.org/wiki/Principle_of_marginality

    In statistics, the principle of marginality, sometimes called hierarchical principle, is the fact that the average (or main) effects of variables in an analysis are marginal to their interaction effect—that is, the main effect of one explanatory variable captures the effect of that variable averaged over all values of a second explanatory variable whose value influences the first variable's ...

  6. Margin (economics) - Wikipedia

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

    Within economics, margin is a concept used to describe the current level of consumption or production of a good or service. [1] Margin also encompasses various concepts within economics, denoted as marginal concepts, which are used to explain the specific change in the quantity of goods and services produced and consumed.

  7. Contingency table - Wikipedia

    en.wikipedia.org/wiki/Contingency_table

    Pivot table, in spreadsheet software, cross-tabulates sampling data with counts (contingency table) and/or sums. TPL Tables is a tool for generating and printing crosstabs. The iterative proportional fitting procedure essentially manipulates contingency tables to match altered joint distributions or marginal sums.

  8. Tail value at risk - Wikipedia

    en.wikipedia.org/wiki/Tail_value_at_risk

    Closed-form formulas exist for calculating TVaR when the payoff of a portfolio or a corresponding loss = follows a specific continuous distribution. If X {\displaystyle X} follows some probability distribution with the probability density function (p.d.f.) f {\displaystyle f} and the cumulative distribution function (c.d.f.) F {\displaystyle F ...

  9. Economic surplus - Wikipedia

    en.wikipedia.org/wiki/Economic_surplus

    As part of social welfare, the size of the producer surplus depends on many factors. Generally speaking, when other factors remain constant, an increase in market price will increase producer surplus, and a decrease in supply price or marginal cost will also increase producer surplus.