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  2. Exponential discounting - Wikipedia

    en.wikipedia.org/wiki/Exponential_discounting

    At date t = 1, this investment opportunity is considered favorable; hence, this function is: −δC + δ^2 B > 0. Now consider from the perspective of date t = 2, this investment opportunity is still viewed as favorable given −C + δB > 0. To view this mathematically, observe that the new expression is the old expression multiplied by 1/δ.

  3. Discounts and allowances - Wikipedia

    en.wikipedia.org/wiki/Discounts_and_allowances

    Trade discounts are given to try to increase the volume of sales being made by the supplier. The discount described as trade rate discount is sometimes called "trade discount". Trade discount is the discount allowed on retail price of a product or something. for e.g. Retail price of a cream is 25 and trade discount is 2% on 25.

  4. Principia Mathematica - Wikipedia

    en.wikipedia.org/wiki/Principia_Mathematica

    It is to be regretted that this first comprehensive and thorough-going presentation of a mathematical logic and the derivation of mathematics from it [is] so greatly lacking in formal precision in the foundations (contained in 1– 21 of Principia [i.e., sections 1– 5 (propositional logic), 8–14 (predicate logic with identity/equality), 20 ...

  5. Discount function - Wikipedia

    en.wikipedia.org/wiki/Discount_function

    In economics, a discount function is used in economic models to describe the weights placed on rewards received at different points in time. For example, if time is discrete and utility is time-separable, with the discount function f(t) having a negative first derivative and with c t (or c(t) in continuous time) defined as consumption at time t, total utility from an infinite stream of ...

  6. Consumer math - Wikipedia

    en.wikipedia.org/wiki/Consumer_math

    Consumer math comprises practical mathematical techniques used in commerce and everyday life. In the United States, consumer math is typically offered in high schools , some elementary schools , or in some colleges which grant associate's degrees .

  7. Stochastic discount factor - Wikipedia

    en.wikipedia.org/wiki/Stochastic_discount_factor

    The concept of the stochastic discount factor (SDF) is used in financial economics and mathematical finance. The name derives from the price of an asset being computable by "discounting" the future cash flow x ~ i {\displaystyle {\tilde {x}}_{i}} by the stochastic factor m ~ {\displaystyle {\tilde {m}}} , and then taking the expectation. [ 1 ]

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  9. Discounted utility - Wikipedia

    en.wikipedia.org/wiki/Discounted_utility

    (This is inconsistent because if the same question were posed 100 days from now, the person would ostensibly again choose 1 candy bar immediately instead of 2 candy bars the next day.) Despite arguments about how β should be interpreted, the basic idea is that all other things equal , the agent prefers to have something now as opposed to later ...