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  2. Optimality model - Wikipedia

    en.wikipedia.org/wiki/Optimality_model

    Optimality modeling is the modeling aspect of optimization theory. It allows for the calculation and visualization of the costs and benefits that influence the outcome of a decision, and contributes to an understanding of adaptations. The approach based on optimality models in biology is sometimes called optimality theory. [1]

  3. Perfect competition - Wikipedia

    en.wikipedia.org/wiki/Perfect_competition

    The real estate market is an example of a very imperfect market. In such markets, the theory of the second best proves that if one optimality condition in an economic model cannot be satisfied, it is possible that the next-best solution involves changing other variables away from the values that would otherwise be optimal. [4]

  4. Theory of the second best - Wikipedia

    en.wikipedia.org/wiki/Theory_of_the_second_best

    In welfare economics, the theory of the second best concerns the situation when one or more optimality conditions cannot be satisfied. [1] The economists Richard Lipsey and Kelvin Lancaster showed in 1956 that if one optimality condition in an economic model cannot be satisfied, it is possible that the next-best solution involves changing other variables away from the values that would ...

  5. Economic model - Wikipedia

    en.wikipedia.org/wiki/Economic_model

    An economic model is a theoretical construct representing economic processes by a set of variables and a set of logical and/or quantitative relationships between them. The economic model is a simplified, often mathematical, framework designed to illustrate complex processes. Frequently, economic models posit structural parameters. [1]

  6. Optimal foraging theory - Wikipedia

    en.wikipedia.org/wiki/Optimal_foraging_theory

    OFT is an ecological application of the optimality model. This theory assumes that the most economically advantageous foraging pattern will be selected for in a species through natural selection. [1] When using OFT to model foraging behavior, organisms are said to be maximizing a variable known as the currency, such

  7. Marginal value theorem - Wikipedia

    en.wikipedia.org/wiki/Marginal_value_theorem

    It is assumed that evolution by natural selection results in animals utilizing the most economic and efficient strategy to balance energy gain and consumption. The Marginal Value Theorem is an optimality model that describes the strategy that maximizes gain per unit time in systems where resources, and thus rate of returns, decrease with time. [2]

  8. Hotelling's law - Wikipedia

    en.wikipedia.org/wiki/Hotelling's_law

    Example of three food carts extending Hotelling's Law, and two carts on a circular path In the case of three pushcarts an unstable equilibrium is reached. Imagine carts A and B are adjacent and each have access to half the potential customers (A’s to the left, B’s to the right).

  9. Fundamental theorems of welfare economics - Wikipedia

    en.wikipedia.org/wiki/Fundamental_theorems_of...

    In the OLG model, the finiteness of endowments fails, giving rise to similar problems as described by Hilbert's paradox of the Grand Hotel. Whether the assumptions underlying the fundamental theorems are an adequate description of markets is at least partially an empirical question and may differ case by case.