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TECHNOLOGY: The sum total of knowledge and information that society has acquired concerning the use of resources to produce goods and services. This technology often takes the form of scientific knowledge (the best combination of chemicals to make a long-lasting floor wax), but can also be plain old common sense (irrigate during a drought, not during a flood). Whether scientific or not, technology affects the technical efficiency with which resources are combined in production. An improvement in technology is thus an increase in the technical efficiency of production--more output with given inputs or fewer inputs for a given output. Technology is often embodied in capital goods. Bigger, better, faster, and less expensive computers are the result of advances in silicon chip technology. However, technology is also embodied in labor as human capital.
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CHANGE IN AGGREGATE EXPENDITURES The movement along an aggregate demand curve caused by a change in the price level. A change in aggregate expenditures is ONLY caused by a change in the price level. This is one of two changes related to aggregate demand. The other is a change in aggregate demand. A change in aggregate expenditures is comparable to a change in quantity demanded.
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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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"Even a mistake may turn out to be the one thing necessary to a worthwhile achievement." -- Henry Ford
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ISMA
International Securities Market Association
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