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INCREASING MARGINAL RETURNS: In the short-run production of a firm, an increase in the variable input results in an increase in the marginal product of the variable input. Increasing marginal returns typically surface when the first few quantities of a variable input are added to a fixed input. Compare this with decreasing marginal returns. You should also compare this with economies of scale associated with long-run production.
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SAVING-INVESTMENT MODEL A variation of the Keynesian injections-leakages model that includes the two private sectors, the household sector and the business sector. This variation, more formally termed the two-sector injections-leakages model, captures the interaction between induced saving (and indirectly induced consumption expenditures) and autonomous investment expenditures. This model provides an alternative to the two-sector aggregate expenditures (Keynesian cross) analysis of the macroeconomy, including equilibrium, disequilibrium, and the multiplier. Equilibrium is identified as the intersection between the saving line and the investment line. Two related variations are the three-sector injections-leakages model and the four-sector injections-leakages model.
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WHITE GULLIBON
[What's This?]
Today, you are likely to spend a great deal of time lost in your local discount super center hoping to buy either a printer that works with your stockpile of ink cartridges or income tax software. Be on the lookout for jovial bank tellers.
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This isn't me! What am I?
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
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"Look at the abundance all around you as you go about your daily business. You have as much right to this abundance as any other living creature. It's yours for the asking." -- Earl Nightingale
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SUR
Seemingly Unrelated Regressions
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