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NEAR-PUBLIC GOOD: A good that's easy to keep nonpayers from consuming, but use of the good by one person doesn't prevent use by others. The trick with a near-public good is that it's easy to keep people away, and thus you can charge them a price for consuming, but there's no real good reason to do so. From an efficiency view, the more people who consume a near-public good, the better off society. This mixture of nearly unlimited benefits and the ability to charge a price means that some near-public goods are sold through markets and others are provided by government. For efficiency's sake, none should be sold through markets.
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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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A communal society, a prime component of Karl Marx's communist philosophy, was advocated by the Greek philosophy Plato.
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"You don't have to see the top of the staircase to take the first step.¾ " -- Martin Luther King, civil rights leader
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WLS
Weighted Least Squares
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