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 LONG-RUN AVERAGE COST CURVE: A curve depicting the per unit cost of producing a good or service in the long run when all inputs are variable. The long-run average cost curve (usually abbreviated LRAC) can be derived in two ways. On is to plot long-run average cost, which is, long-run total cost divided by the quantity of output produced. at different output levels. The more common method, however, is as an envelope of an infinite number of short-run average total cost curves. Such an envelope is base on identifying the point on each short-run average total cost curve that provides the lowest possible average cost for each quantity of output. The long-run average cost curve is U-shaped, reflecting economies of scale (or increasing returns to scale) when negatively-sloped and diseconomies of scale (or decreasing returns to scale) when positively sloped. The minimum point (or range) on the LRAC curve is the minimum efficient scale.
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 Lesson 13: Aggregate Demand | Unit 4: Determinants Page: 18 of 22

 Topic: Shifts: Decrease <=PAGE BACK | PAGE NEXT=>

The aggregate demand determinants cause the aggregate demand curve to shift. A decrease in aggregate demand shifts the aggregate demand curve to the left.

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INTEREST RATES, AGGREGATE DEMAND DETERMINANT

One of several specific aggregate demand determinants assumed constant when the aggregate demand curve is constructed, and that shifts the aggregate demand curve when it changes. An increase in interest rates cause a decrease (leftward shift) of the aggregate curve. A decrease in interest rates an increase (rightward shift) of the aggregate curve. Other notable aggregate demand determinants include the federal deficit, inflationary expectations, and the money supply.

 BROWN PRAGMATOX[What's This?] Today, you are likely to spend a great deal of time lost in your local discount super center seeking to buy either a handcrafted bird feeder or a New York Yankees baseball cap. Be on the lookout for broken fingernail clippers.Your Complete Scope
 The first "Black Friday" on record, a friday marked by a major financial catastrophe, occurred on September 24, 1869 -- A FRIDAY -- when an attempted cornering of the gold market induced a financial crises and economy-wide depression.
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