Exam 4: Supply and Demand An Initial Look
The cost of processors and memory has decreased dramatically in the past twenty-five years.As a result,we have seen
B
From 2007 to 2008,the Federal Reserve System reduced interest rates,the price which borrowers pay.As a result,economists expected that the quantity of money supplied would
B
Distinguish between demand and quantity demanded.Do the same for supply and quantity supplied.
Quantity demanded is the number of units consumers want to buy at a specific price over a specified period.It depends upon the price charged.Demand,or a demand schedule,shows how the quantity demanded of some product during a specified period will change as the price of the product changes,holding all other determinants of quantity demanded constant.On a demand curve,quantity demanded is a single point. Similarly,quantity supplied is the number of units sellers are willing to sell over a specified period at a specific price.Supply,or a supply schedule,is a table showing how the quantity supplied of some product during a specified period changes as the price of the product changes,holding all other determinants of quantity supplied constant.In a supply curve,quantity supplied is a single point.
We observed that the price of a good rises and the quantity purchased also rises.Everything else being equal,it is consistent that
The quantity of Blu-Ray players purchased declined in spite of a decline in price.This implies that the
Figure 4-10
-The rising minimum wage allegedly has reduced the quantity demanded of teenage labor.However,demographics slightly reduced the supply of teenage labor.The U.S.Department of Labor reported that teenage unemployment is an increasing problem.Which graph in Figure 4-10 is consistent with these facts?

As more firms are attracted to an industry,the supply curve can be expected to shift to the right.
Figure 4-6
-The following price-quantity coordinates for gold used by U.S.dentists were observed: P = $875/ounce,Q = 342,000; P = $200/ounce,Q = 706,000.These points most likely lie along the

Rent controls encourage investment in housing because they bring stability to the market.
Which of the following suggests that the "laws" of supply and demand are being disobeyed?
Cost-reducing technological advancements allow suppliers to earn more profits but have no noticeable effect on the supply curve.
Figure 4-8
-Women today are having more babies than women did fifteen years ago.The result is that mothers today have trouble finding baby-sitters and are shocked at what they must pay for child care.Which graph in Figure 4-8 best illustrates how the situation has changed?

An increase in the price of gasoline shifts the demand for tires to the
Firms often seek to borrow money to expand their capital stock,and the price they pay for that money is the interest rate.What happens to quantity of money demanded if the interest rate increases?
If the U.S.government starts to sell off its stockpile of cheese,
Enacting a law controlling rents near a major university will increase the affordable housing for college students.
To construct a supply curve,an economist needs data on price and quantity.Each point on the supply curve is
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