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  2. Time value of money - Wikipedia

    en.wikipedia.org/wiki/Time_value_of_money

    Time value of money. The present value of $1,000, 100 years into the future. Curves represent constant discount rates of 2%, 3%, 5%, and 7%. The time value of money is the widely accepted conjecture that there is greater benefit to receiving a sum of money now rather than an identical sum later. It may be seen as an implication of the later ...

  3. Arc elasticity - Wikipedia

    en.wikipedia.org/wiki/Arc_elasticity

    The y arc elasticity of x is defined as: , = % % where the percentage change in going from point 1 to point 2 is usually calculated relative to the midpoint: % = (+) /; % = (+) /. The use of the midpoint arc elasticity formula (with the midpoint used for the base of the change, rather than the initial point (x 1, y 1) which is used in almost all other contexts for calculating percentages) was ...

  4. Discount points - Wikipedia

    en.wikipedia.org/wiki/Discount_Points

    Borrowers can offer to pay a lender points as a method to reduce the interest rate on the loan, thus obtaining a lower monthly payment in exchange for this up-front payment. For each point purchased, the loan rate is typically reduced by anywhere from 1/8% (0.125%) to 1/4% (0.25%). [1] [2]

  5. PSA prepayment model - Wikipedia

    en.wikipedia.org/wiki/PSA_prepayment_model

    The standard model (also called "100% PSA") works as follows: Starting with an annualized prepayment rate of 0.2% in month 1, the rate increases by 0.2% each month, until it reaches 6% in month 30. From the 30th month onward, the model assumes an annualized prepayment rate of 6% of the remaining balance. [2] Each monthly prepayment is assumed ...

  6. Break-even point - Wikipedia

    en.wikipedia.org/wiki/Break-even_point

    The break-even point (BEP) in economics, business —and specifically cost accounting —is the point at which total cost and total revenue are equal, i.e. "even". In layman's terms, after all costs are paid for there is neither profit nor loss. [1] [2] In economics specifically, the term has a broader definition; even if there is no net loss ...

  7. Consumer price index - Wikipedia

    en.wikipedia.org/wiki/Consumer_price_index

    A consumer price index ( CPI) is a price index, the price of a weighted average market basket of consumer goods and services purchased by households. Changes in measured CPI track changes in prices over time. [1] The CPI is calculated by using a representative basket of goods and services. The basket is updated periodically to reflect changes ...

  8. Percentage point - Wikipedia

    en.wikipedia.org/wiki/Percentage_point

    Percentage point. A percentage point or percent point is the unit for the arithmetic difference between two percentages. For example, moving up from 40 percent to 44 percent is an increase of 4 percentage points (although it is a 10-percent increase in the quantity being measured, if the total amount remains the same). [ 1]

  9. Compound interest - Wikipedia

    en.wikipedia.org/wiki/Compound_interest

    The amount of interest paid every six months is the disclosed interest rate divided by two and multiplied by the principal. The yearly compounded rate is higher than the disclosed rate. Canadian mortgage loans are generally compounded semi-annually with monthly or more frequent payments. [1] U.S. mortgages use an amortizing loan, not compound ...