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  2. Mathematical principles of reinforcement - Wikipedia

    en.wikipedia.org/wiki/Mathematical_principles_of...

    This equation predicts serious instability for non-contingent schedules of reinforcement. Fixed-interval schedules are guaranteed a strengthening of a target response, b=w1, as reinforcement is contingent on this final, contiguous response (Killeen, 1994). This coupling is equivalent to the coupling on FR 1 schedules w1=b=1-e-l.

  3. Law of definite proportions - Wikipedia

    en.wikipedia.org/wiki/Law_of_definite_proportions

    The law of definite proportion was given by Joseph Proust in 1797. [2]I shall conclude by deducing from these experiments the principle I have established at the commencement of this memoir, viz. that iron like many other metals is subject to the law of nature which presides at every true combination, that is to say, that it unites with two constant proportions of oxygen.

  4. Mutual fund fees and expenses - Wikipedia

    en.wikipedia.org/wiki/Mutual_fund_fees_and_expenses

    One notable component of the expense ratio of U.S. funds is the "12b-1 fee", which represents expenses used for advertising and promotion of the fund. 12b-1 fees are paid by the fund out of mutual fund assets and are generally limited to a maximum of 1.00% per year (.75% distribution and .25% shareholder servicing) under FINRA Rules.

  5. Financial ratio - Wikipedia

    en.wikipedia.org/wiki/Financial_ratio

    A financial ratio or accounting ratio states the relative magnitude of two selected numerical values taken from an enterprise's financial statements. Often used in accounting , there are many standard ratios used to try to evaluate the overall financial condition of a corporation or other organization.

  6. Isocost - Wikipedia

    en.wikipedia.org/wiki/Isocost

    Now since the absolute value of the slope of the isocost line is the input cost ratio /, and the absolute value of the slope of an isoquant is the marginal rate of technical substitution (MRTS), we reach the following conclusion: If the isoquants are smooth and convex to the origin and the cost-minimizing input bundle involves a positive amount ...

  7. Yield to maturity - Wikipedia

    en.wikipedia.org/wiki/Yield_to_maturity

    Yield to put (YTP): same as yield to call, but when the bond holder has the option to sell the bond back to the issuer at a fixed price on specified date. Yield to worst (YTW): when a bond is callable, puttable, exchangeable, or has other features, the yield to worst is the lowest yield of yield to maturity, yield to call, yield to put, and others.

  8. Fixed income - Wikipedia

    en.wikipedia.org/wiki/Fixed_income

    Fixed-income securities also trade differently than equities. Whereas equities, such as common stock, trade on exchanges or other established trading venues, many fixed-income securities trade over-the-counter on a principal basis. [1] The term "fixed" in "fixed income" refers to both the schedule of obligatory payments and the amount.

  9. Economic order quantity - Wikipedia

    en.wikipedia.org/wiki/Economic_order_quantity

    There is a fixed cost for each order placed, regardless of the quantity of items ordered; an order is assumed to contain only one type of inventory item. There is also a cost for each unit held in storage, commonly known as holding cost, sometimes expressed as a percentage of the purchase cost of the item. Although the EOQ formulation is ...