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INDEX: A measure of the relative average of a group of items compared to a given base value. Index measures are commonly used in economics to combine and compare diverse measures. One common type of index measure is for prices, such as the Consumer Price Index and the Dow Jones Industrial Average of corporate stock prices. Another noted type of index measure is to track macroeconomic activity, especially the index leading economic indicators. Indexes are usually weighted averages rather than simple arithmetic means that are measured relative to a base value or period. The Consumer Price Index, for example, measures the prices of consumer good, weighted by the quantities purchased. The value of a given period is then stated relative to a base year value, which generates a pure, "unitless" number in the range of 100 (give or take).
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PRODUCTION STAGES The three stages of production are characterized by the slopes, shapes, and interrelationships of the total, marginal, and average product curves. The first stage is characterized by a positive slope of the average product curve, ending at the intersection between the average product and marginal product curves; the second stage by continues up to the point in which the marginal product becomes negative, at the peak of the total product curve; and the third stage exists over the range of in which the total product curve is negatively sloped. In Stage I, average product is positive and increasing. In Stage II, marginal product is positive, but decreasing. And in Stage III, total product is decreasing.
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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel seeking to buy either a hepa filter for your furnace or a wall poster commemorating next Thursday. Be on the lookout for strangers with large satchels of used undergarments.
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This isn't me! What am I?
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
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"I've always believed that if you put in the work, the results will come. I don't do things half-heartedly. Because I know if I do, then I can expect half-hearted results. " -- Michael Jordan, basketball player
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PSID
Panel Study of Income Dynamics
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