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ABSTRACTION: Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is often criticized because it's, well, it's JUST NOT REALISTIC. However, when done correctly (ignoring things that JUST DON'T MATTER), then the pursuit of knowledge is greatly enhanced by abstraction. For example, when travelling cross country along a high-speed interstate highway, a paper road map is a handy tool. It shows towns and cities along the way, the major intersections, rest stop locations, and other important points of interest. However, it ignores unimportant details. It doesn't realistically show the location of every tree, bush, or blade of grass. Why bother? This information won't enhance your road trip.
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EXCLUDABILITY: The ability to keep people who don't pay for a good from consuming the good. For some goods, it's very easy (that is, the cost is low) for owners or producers to keep others from enjoying the benefit of a good. Examples of this abound, like candy bars, shoes, houses, computers, and well a bunch of other stuff. Other goods, however, prove more difficult to keep the nonpayers away. Examples of these include oceans, national defense, and fireworks displays. Excludability is one of the two key characteristics of a good (the other is rival consumption) that distinguishes between common-property goods, near-public goods, private goods, and public goods. See also | good types | rival consumption | common-property good | near-public good | private good | public good | market failure | externalities |
Recommended Citation:EXCLUDABILITY, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2026. [Accessed: August 11, 2026].
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AGGREGATE SUPPLY SHIFTS Changes in the aggregate supply determinants shift both the short-run aggregate supply curve and the long-run aggregate supply curve. The mechanism is comparable to that for market supply determinants and market supply. There are two options--an increase in aggregate supply and a decrease in aggregate supply. An increase in resource quantity or quality or a decrease in resource price shifts one or both of the aggregate supply curves to right. A decrease in resource quantity or quality or an increase in resource price shifts one or both of the aggregate supply curves to left.
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YELLOW CHIPPEROON
[What's This?]
Today, you are likely to spend a great deal of time flipping through the yellow pages looking to buy either a cross-cut paper shredder or a birthday greeting card for your father. Be on the lookout for door-to-door salesmen.
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One of the largest markets for gold in the United States is the manufacturing of class rings.
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"I love the man who can smile in trouble, who can gather strength from distress and grow brave by reflection. " -- Thomas Paine, statesman
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AS
Aggregate Supply
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