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INDEX: A measure of the relative average of a group of items compared to a given base value. Index measures are commonly used in economics to combine and compare diverse measures. One common type of index measure is for prices, such as the Consumer Price Index and the Dow Jones Industrial Average of corporate stock prices. Another noted type of index measure is to track macroeconomic activity, especially the index leading economic indicators. Indexes are usually weighted averages rather than simple arithmetic means that are measured relative to a base value or period. The Consumer Price Index, for example, measures the prices of consumer good, weighted by the quantities purchased. The value of a given period is then stated relative to a base year value, which generates a pure, "unitless" number in the range of 100 (give or take).
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                           SAVING LINE: A graphical depiction of the relation between household sector saving and income. The saving line is closely related to the consumption line that forms one of the key building blocks for Keynesian economics. A saving line is characterized by vertical intercept, which indicates autonomous saving, and 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 line. The saving',500,400)">saving line, also termed propensity-to-save line or saving function, shows the relation between saving and income for the household sector. The income measure commonly used is national income or disposable income. Occasionally a measure of aggregate production, such as gross domestic product, is used instead.The purpose of the saving line is to graphically illustrate the basic saving-income relation for the household sector, which is the foundation of the injections-leakages model used in Keynesian economics. Two basic types of saving are indicated by the saving line. Autonomous saving is the vertical intercept, or Y-intercept, of the saving line. Induced saving is the slope of the saving line. Of no small importance, the slope of the saving line is also the marginal propensity to save (MPS). | Saving Line | 
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A representative saving line is presented in the exhibit to the right. This red line, labeled S in the exhibit is positively sloped, indicating that greater levels of income generate greater saving by the household sector. This positive relation corresponds to the fundamental psychological law of Keynesian economics.The two primary characteristics of the saving line are slope and intercept: - Slope: The slope of the saving line presented here is positive, but less than one. In fact, the slope of the saving line is numerically equal to the marginal propensity to save. In this case the slope is equal to 0.25. The positive slope reflects induced saving--more income means more saving. It also reflects the basic Keynesian psychological law. Click the [Slope] button to illustrate.
- Intercept: The saving line intersects the vertical axis at a value of -$1 trillion. This intersection indicates autonomous saving--saving unrelated to income. Autonomous saving is usually negative, indicating dissaving. This occurs because autonomous consumption is positive. Click the [Intercept] button to illustrate.
Note that the level of income (and production) generated by full employment of resources is NOT indicated in this exhibit. Full employment could correspond with $2 trillion of income or $20 trillion. There is no way of knowing. This is particularly important when injections-leakages model, used to identified equilibrium, is derived based on the saving line.
Recommended Citation:SAVING LINE, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2018. [Accessed: December 13, 2018].
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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 decorative picture frames or storage boxes for your income tax returns. Be on the lookout for celebrities who speak directly to you through your television.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"Follow effective action with quiet reflection. From the quiet reflection will come even more effective action. " -- Peter F. Drucker, author
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T-BOND
Treasury Bond
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