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SAVING-INVESTMENT MODEL: A model used to identify equilibrium in Keynesian economics based on injections (investment, I) and leakages (saving, S) for the two basic sectors (household and business). Equilibrium is achieved at the intersection of the saving line, S, and the investment line, I.

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ELASTIC

The general relation between two variables in which relatively small changes in one variable (A) cause relatively large changes in another variable (B). Small changes in variable A cause relatively large changes in variable B or the percentage change in variable B is larger than the percentage change in variable A. This characterization of elasticity is most important for the price elasticity of demand and the price elasticity of supply. Elastic is one of two general elasticity relations between two variables. The other is inelastic.

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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway looking to buy either a desktop calendar with all federal and state holidays highlighted or a half-dozen helium filled balloons. Be on the lookout for slightly overweight pizza delivery guys.
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Three-forths of the gold mined each year is used to manufacture jewelry.
"Nothing great has ever been achieved except by those who dared believe that something inside them was superior to circumstances. "

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Journal of Public Economics
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