March 23, 2018 

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ECU: The abbreviation of the European Currency Unit, which is the forerunner of the euro that will be officially introduced in the European Union in 2002. The European Currency Unit is the weighted average of the currencies of the twelve original nations of the European Union. In that there are is no paper currency yet, it is currently used primarily for big-time commercial, financial, and international transactions.

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PRODUCTION TIME PERIODS: Alternative time periods used to differentiate between variable inputs and fixed inputs that are key to the analysis of short-run production and long-run production by a firm. The two primary time periods are short run and long run. Two secondary periods are very short run (market period) and very long run. Time periods are specified based on the number of inputs that are fixed or variable.

     See also | short run, microeconomics | long run, microeconomics | very short run, microeconomics | very long run, microeconomics | production inputs | fixed input | variable input | production | production cost | variables | labor | capital | law of supply | economic analysis | marginal analysis | factors of production | microeconomics | market | price | quantity supplied | short-run production analysis | long-run production analysis | production function | product | total product | marginal product | average product | law of diminishing marginal returns | marginal returns | production stages | division of labor | production possibilities |

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A mathematical relation between saving and income by the household sector. The saving function can be stated as an equation, usually a simple linear equation, or as a diagram designated as the saving line. This function captures the saving-income relation, the flip side of the consumption-income relation that forms one of the key building blocks for Keynesian economics. The two key parameters of the saving function are the intercept term, which indicates autonomous saving, and the slope, which is the marginal propensity to save and indicates induced saving. The injections-leakages model used in Keynesian economics is based on the saving function.

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Today, you are likely to spend a great deal of time at a crowded estate auction hoping to buy either a coffee cup commemorating last Friday (you know why) or a wall poster commemorating the first day of spring. Be on the lookout for small children selling products door-to-door.
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It's estimated that the U.S. economy has about $20 million of counterfeit currency in circulation, less than 0.001 perecent of the total legal currency.
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