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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]
A cost index is the ratio of the actual price in a time period compared to that in a selected base period (a defined point in time or the average price in a certain year), multiplied by 100. Raw materials, products and energy prices, labor and construction costs change at different rates, and plant construction cost indexes are actually a ...
In statistics relating to national economies, the indexation of contracts also called "index linking" and "contract escalation" is a procedure when a contract includes a periodic adjustment to the prices paid for the contract provisions based on the level of a nominated price index. The purpose of indexation is to readjust contracts to account ...
Price indices generally select a base year and make that index value equal to 100. Every other year is expressed as a percentage of that base year. In this example, let 2000 be the base year: 2000: original index value was $2.50; $2.50/$2.50 = 100%, so new index value is 100
In simpler terms, the true cost-of-living index is the cost of achieving a certain level of utility (or standard of living) in one year relative to the cost of achieving the same level the next year. Utility is not directly measurable, so the true cost of living index only serves as a theoretical ideal, not a practical price index formula.
Cost index (or factor) - a value used to adjust the cost of from one time to another. [5] There are various published cost indexes, listed by year, quarter, or month. RSMeans publishes a historical cost index. [6] Costing - the process of applying appropriate costs to the line items after the take off. RSMeans refers to this as, "Price the ...
The total costs in 2000 are £20,000 for low-risk, £45,000 for medium-risk and £25,000 for high-risk prisoners, or £90,000 in total. In 2005, there are 22, 27 and 15 prisoners in these categories, so the changes are +10%, -10% and +50%.
Calculating how much should be invested in an asset in order to achieve a desired result (i.e., purchasing a storage tank with a 20-year life, as opposed to one with a 5-year life, in order to achieve a similar EAC). [11] Comparing to estimated annual cost savings, in order to determine whether it makes economic sense to invest. [12]