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  2. Leverage (statistics) - Wikipedia

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

    The formula then divides by () to account for the fact that we remove the observation rather than adjusting its value, reflecting the fact that removal changes the distribution of covariates more when applied to high-leverage observations (i.e. with outlier covariate values). Similar formulas arise when applying general formulas for statistical ...

  3. Homemade leverage - Wikipedia

    en.wikipedia.org/wiki/Homemade_Leverage

    Investors can use homemade leverage to change an unleveraged firm into a leveraged firm. [ 1 ] [ 2 ] According to the Corporate Finance Institute , "the founding philosophy of homemade leverage is the Modigliani–Miller theorem , which assumes an efficient market and the absence of corporate taxes and bankruptcy costs."

  4. List of price index formulas - Wikipedia

    en.wikipedia.org/wiki/List_of_price_index_formulas

    The Marshall-Edgeworth index, credited to Marshall (1887) and Edgeworth (1925), [11] is a weighted relative of current period to base period sets of prices. This index uses the arithmetic average of the current and based period quantities for weighting. It is considered a pseudo-superlative formula and is symmetric. [12]

  5. Beneish M-score - Wikipedia

    en.wikipedia.org/wiki/Beneish_M-Score

    Beneish M-score is a probabilistic model, so it cannot detect companies that manipulate their earnings with 100% accuracy. Financial institutions were excluded from the sample in Beneish paper when calculating M-score since these institutions make money through different routes.

  6. MACD - Wikipedia

    en.wikipedia.org/wiki/MACD

    These three series are: the MACD series proper, the "signal" or "average" series, and the "divergence" series which is the difference between the two. The MACD series is the difference between a "fast" (short period) exponential moving average (EMA), and a "slow" (longer period) EMA of the price series. The average series is an EMA of the MACD ...

  7. Method of averaging - Wikipedia

    en.wikipedia.org/wiki/Method_of_averaging

    Suppose also that the amplitude of the vertical vibrations, , is much less than the length of the pendulum. The pendulum's trajectory in phase space will trace out a spiral around a curve C {\displaystyle C} , moving along C {\displaystyle C} at the slow rate g / l {\displaystyle {\sqrt {g/l}}} but moving around it at the fast rate ω ...

  8. Rate of return - Wikipedia

    en.wikipedia.org/wiki/Rate_of_return

    The return, or the holding period return, can be calculated over a single period.The single period may last any length of time. The overall period may, however, instead be divided into contiguous subperiods. This means that there is more than one time period, each sub-period beginning at the point in time where the previous one ended. In such a case, where there are

  9. Silver–Meal heuristic - Wikipedia

    en.wikipedia.org/wiki/Silver–Meal_heuristic

    h: holding cost per unit per period. C(T) : the average holding and setup cost per period if the current order spans the next T periods. Let (r 1, r 2, r 3, .....,r n) be the requirements over the n-period horizon. To satisfy the demand for period 1 = The average cost = only the setup cost and there is no inventory holding cost