March 20, 2018 

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JOINT PRODUCTION: The simultaneous production of two or more goods from the same resource. For example the production of beef also results in the production of leather and the production of lumber also results in the production of sawdust. Joint production can be beneficial, that is, giving a producer multiple products to sell. But it can also be problematic when one of the joint products is undesirable, such as pollution or waste residuals.

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FOURTH RULE OF COMPETITION: The fourth of seven basic rules of the economy. It is the notion that competition among market buyers and sellers generate an efficient allocation of resources. Competition depends on the relative number of buyers and sellers. Fewer numbers give that side of the market relatively more market control and thus limits competition.

     See also | seven rules | market | competition | resource allocation | market control | monopoly | perfect competition | efficiency | competition among the many | competition among the few |

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A shock to the short-run aggregate market caused by a decrease in aggregate supply, resulting in and illustrated by a leftward shift of the short-run aggregate supply curve. A decrease in aggregate supply in the short-run aggregate market results in an increase in the price level and a decrease in real production. The level of real production resulting from the shock can be greater or less than full-employment real production.

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Today, you are likely to spend a great deal of time browsing through a long list of dot com websites trying to buy either an AC adapter that won't fry your computer or a case for your designer sunglasses. Be on the lookout for slow moving vehicles with darkened windows.
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