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DISECONOMIES OF SCALE: Increasing long-run average cost that occurs as a firm increases all inputs and expands its scale of production. This is graphically illustrated by a positively-sloped long-run average cost curve and typically occurs for relatively large levels of production. Diseconomies of scale overwhelm by economies of scale for relatively large production levels. Together, economies of scale and diseconomies of scale cause the long-run average cost curve to be U-shaped.
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INJECTIONS-LEAKAGES MODEL A macroeconomic model that balances non-consumption expenditures on production (injections) and non-consumption uses of income (leakages) that is used to identify the equilibrium level of, and analyze disruptions to, aggregate production and income. The injections-leakages model is based on the principles of Keynesian economics and provides an alternative to the standard aggregate expenditures (Keynesian cross) analysis. The three injections included in the model are investment expenditures, government purchases, and exports. The three leakages included in the model are saving, taxes, and imports. Three variations are the two-sector injections-leakages model (or saving-investment model), three-sector injections-leakages model, and four-sector injections-leakages model.
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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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"The ideals that have lighted my way, and time after time have given me new courage to face life cheerfully, have been kindness, beauty and truth. " -- Albert Einstein, physicist
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RPI
Retail Price Index
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