Deck 3: Demand and Supply

Question 1

Use the table below to answer the following questions.
Table 3.1.1
$$\begin{array} { c c c c } \hline\text { Year } & \text { Coffee Price } & \text { Tea Price } & \text { Cola Price } \\\hline 2010 & \$ 1.25 & \$ 1.10 & \$ 0.80 \\2011 & \$ 1.50 & \$ 1.00 & \$ 1.00 \\2012 & \$ 1.25 & \$ 1.20 & \$ 1.00 \\\hline\end{array}$$

-Refer to Table 3.1.1.Between 2011 and 2012,the price of coffee relative to the price of tea ________ while the price of coffee relative to the price of cola ________.

A)rose;rose
B)rose;fell
C)fell;rose
D)fell;fell
E)fell;stayed constant

Answer 1

fell;fell

Question 2

A market where no single buyer or seller can influence the price is

A)a buyer's market.
B)a seller's market.
C)a competitive market.
D)an output market.
E)an input market.

Answer 2

C

Question 3

The demand curve slopes downward to the right because

A)an increase in income leads to increased consumption.
B)of the law of supply.
C)of the law of demand.
D)of comparative advantage.
E)as income rises,the quantity demanded increases.

Answer 3

C

Question 4

A relative price is

A)the ratio of one price to another.
B)an opportunity cost.
C)a quantity of a "basket" of goods and services forgone.
D)determined by demand and supply.
E)all of the above.

Question 5

The demand and supply model determines

A)relative prices.
B)money prices.
C)supply prices.
D)demand prices.
E)absolute prices.

Question 6

Which market is an example of a market for goods?

A)labour market
B)haircut market
C)manufactured input market
D)apple market
E)energy market

Question 7

An increase in the price of ground beef

A)increases the demand for chicken,a substitute for ground beef.
B)increases the demand for hamburger buns,a complement of ground beef.
C)increases the quantity demanded of ground beef.
D)decreases the quantity demanded of ground beef.
E)both A and D.

Question 8

Which one of the following events shifts the demand curve for grape jelly to the right?

A)an increase in income if grape jelly is a normal good
B)a decrease in the price of strawberry preserves,a substitute for grape jelly
C)a decrease in the price of grape jelly
D)an increase in the price of peanut butter,a complement of grape jelly
E)a decrease in the population

Question 9

Suppose the price of a football is $20.00 and the price of a basketball is $10.00.The ________ of a football is ________.

A)relative price;2 basketballs per football
B)relative price;1/2 basketball per football
C)opportunity cost;$15.00
D)opportunity cost;$10.00
E)relative price;$10

Question 10

The opportunity cost of good A in terms of good B is equal to the

A)money price of good A minus the money price of good B.
B)money price of good B minus the money price of good A.
C)ratio of the money price of good A to the money price of good B.
D)ratio of the money price of good B to the money price of good A.
E)money price of good A plus the money price of good B.

Question 11

Use the table below to answer the following questions.
Table 3.1.1
$$\begin{array} { c c c c } \hline\text { Year } & \text { Coffee Price } & \text { Tea Price } & \text { Cola Price } \\\hline 2010 & \$ 1.25 & \$ 1.10 & \$ 0.80 \\2011 & \$ 1.50 & \$ 1.00 & \$ 1.00 \\2012 & \$ 1.25 & \$ 1.20 & \$ 1.00 \\\hline\end{array}$$

-Refer to Table 3.1.1.In 2012,the relative price of cola in terms of tea is

A)1.00.
B)1.20.
C)0.83.
D)1.25.
E)unknown without more information.

Question 12

Use the table below to answer the following questions.
Table 3.1.1
$$\begin{array} { c c c c } \hline\text { Year } & \text { Coffee Price } & \text { Tea Price } & \text { Cola Price } \\\hline 2010 & \$ 1.25 & \$ 1.10 & \$ 0.80 \\2011 & \$ 1.50 & \$ 1.00 & \$ 1.00 \\2012 & \$ 1.25 & \$ 1.20 & \$ 1.00 \\\hline\end{array}$$

-Refer to Table 3.1.1.In 2012,the relative price of coffee in terms of cola is

A)1.25.
B)1.00.
C)0.67.
D)1.56.
E)unknown without more information.

Question 13

The law of demand states that,other things remaining the same,

A)the higher the price of a good,the smaller is the quantity demanded.
B)the higher the price of a good,the smaller is the quantity supplied.
C)price and quantity supplied are positively related.
D)as income increases,willingness to pay for the last unit increases.
E)the higher the price of a good,the greater is the quantity demanded.

Question 14

The relative price of a good is all of the following except

A)the ratio of one price to another.
B)an opportunity cost.
C)the money price of the good divided by a price index.
D)the same as the money price of a good.
E)determined in a market.

Question 15

Which market is an example of a market for services?

A)orange market
B)tennis lessons market
C)manufactured input market
D)energy market
E)labour market

Question 16

William Gregg owned a mill in South Carolina.In December 1862,he placed a notice in the Edgehill Advertister announcing his willingness to exchange cloth for food and other items.Here is an extract: 1 yard of cloth for 1 pound of bacon
2 yards of cloth for 1 pound of butter
4 yards of cloth for 1 pound of wool
8 yards of cloth for 1 bushel of salt
If the money price of bacon was 20¢ a pound and the money price of salt was $2.00 a bushel,people would ________.

A)buy bacon and trade it for cloth because they could buy 8 yards of cloth for only $1.60,and use that cloth to obtain a bushel of salt
B)not buy bacon and trade it for cloth because they would have to buy 8 yards of cloth for $1.60 and then give Mr.Gregg an extra $0.40 to buy a bushel of salt
C)buy bacon and trade it for cloth and then trade the cloth for salt because salt is more important for life than either cloth or bacon
D)not buy bacon and trade it for cloth because the relative price of 1 bushel of salt is only 1/8 yard of cloth
E)buy bacon and trade it for cloth because cloth is more expensive than bacon

Question 17

Use the table below to answer the following questions.
Table 3.1.1
$$\begin{array} { c c c c } \hline\text { Year } & \text { Coffee Price } & \text { Tea Price } & \text { Cola Price } \\\hline 2010 & \$ 1.25 & \$ 1.10 & \$ 0.80 \\2011 & \$ 1.50 & \$ 1.00 & \$ 1.00 \\2012 & \$ 1.25 & \$ 1.20 & \$ 1.00 \\\hline\end{array}$$

-Refer to Table 3.1.1.Between 2010 and 2011,the price of coffee relative to the price of tea ________ while the price of coffee relative to the price of cola ________.

A)rose;rose
B)rose;fell
C)fell;rose
D)fell;fell
E)fell;stayed constant

Question 18

How many sides does a market have?

A)one side - buyers
B)one side - sellers
C)two sides - buyers and sellers
D)three sides - buyers,sellers,and the government
E)two sides - domestic and foreign

Question 19

Which market is an example of a resource market?

A)furniture market
B)apple market
C)automobile market
D)haircut market
E)labour market

Question 20

Use the table below to answer the following questions.
Table 3.1.1
$$\begin{array} { c c c c } \hline\text { Year } & \text { Coffee Price } & \text { Tea Price } & \text { Cola Price } \\\hline 2010 & \$ 1.25 & \$ 1.10 & \$ 0.80 \\2011 & \$ 1.50 & \$ 1.00 & \$ 1.00 \\2012 & \$ 1.25 & \$ 1.20 & \$ 1.00 \\\hline\end{array}$$

-Refer to Table 3.1.1.In 2010,the relative price of coffee in terms of tea is

A)1.25.
B)1.10.
C)1.00.
D)0.88.
E)1.14.

Question 21

Good A is a normal good if

A)a rise in the price of a complement causes the demand for A to decrease.
B)income and the demand for A are negatively related.
C)a rise in the price of a substitute causes the demand for A to increase.
D)the demand for A increases when income rises.
E)good A satisfies the law of demand.

Question 22

Use the figure below to answer the following questions.
Figure 3.2.2
Refer to Figure 3.2.2.If consumers' income increases,

A)the quantity of pizzas demanded increases.
B)the demand curve for pizzas shifts from D₁ to D₂ if a pizza is a normal good.
C)the supply of pizzas increases.
D)the quantity of pizzas supplied decreases.
E)a movement from point A to point B on D₁ occurs.

Question 23

Use the figure below to answer the following questions.
Figure 3.2.1
Point A in Figure 3.2.1 indicates that

A)$1 is the least that consumers are willing to pay for the 4,000th apple.
B)consumers will not be in equilibrium if the price of an apple is $1.
C)consumers will only pay $1 for any apple.
D)if the price is $1,consumers will plan to buy 4,000 apples.
E)if the price is more than $1,consumers will buy 9,000 apples.

Question 24

Use the figure below to answer the following questions.
Figure 3.2.2
Which one of the following would result in the demand curve shifting from D₁ to D₂ in Figure 3.2.2?

A)an increase in the supply of pizza
B)a rise in the price of hamburgers,a substitute for pizza
C)a rise in the price of pizza
D)a fall in the price of pizza
E)a rise in the price of Coke,a complement of pizza

Question 25

A decrease in quantity demanded is represented by a

A)rightward shift of the supply curve.
B)rightward shift of the demand curve.
C)leftward shift of the demand curve.
D)movement upward and to the left along the demand curve.
E)movement downward and to the right along the demand curve.

Question 26

A turnip is an inferior good if

A)an increase in the price of a turnip decreases the quantity of turnips that consumers want to buy.
B)an increase in income decreases the demand for turnips.
C)an increase in income increases the demand for turnips.
D)turnips violate the law of demand.
E)turnips are a low quality good.

Question 27

The price of good A rises,and the demand curve for good B shifts leftward.We can conclude that

A)A and B are substitutes.
B)A and B are complements.
C)A and B are complements in production.
D)B is an inferior good.
E)B is a normal good.

Question 28

If a turnip is an inferior good,then,ceteris paribus,an increase in the price of a turnip will

A)decrease the demand for turnips.
B)increase the demand for turnips.
C)decrease the supply of turnips.
D)increase the supply of turnips.
E)none of the above.

Question 29

Which one of the following would result in a movement from point A to point B in Figure 3.2.1?

A)a fall in the price of apples
B)a rise in the price of oranges
C)an increase in population size
D)public concern about chemicals sprayed on apples
E)a rise in the price of bananas

Question 30

Which one of the following statements best characterizes point B in Figure 3.2.1?

A)Producers would be unwilling to sell the 9,000th apple for less than $0.50.
B)The most that consumers would be willing to pay for the 9,000th apple is $0.50.
C)At a price of $0.50,consumers will be unwilling to buy any apples.
D)At a price of $0.50,there will be an apple shortage.
E)At point B,the market is in equilibrium.

Question 31

The price of good X falls and the demand for good Y decreases.We can conclude that

A)X and Y are complements.
B)X and Y are independent of each other.
C)X is an inferior good.
D)X is a normal good.
E)X and Y are substitutes.

Question 32

Some sales managers are talking shop.Which one of the following quotations refers to a leftward shift of the demand curve?

A)"Since our competitors raised their prices,our sales have doubled."
B)"It has been an unusually mild winter;our sales of wool scarves are down from last year."
C)"We decided to cut our prices,and the increase in our sales has been remarkable."
D)"The Green movement has sparked an increase in our sales of biodegradable products."
E)None of the above.

Question 33

Given Figure 3.2.1,under what condition are consumers willing to buy more than 9,000 apples per week?

A)if the price is above $1
B)if the price is between $1 and $0.50
C)if the price is below $0.50
D)if the price is between $1 and $1.50
E)if the price is $0.75

Question 34

Which one of the following would lead to an increase in the demand for hamburgers?

A)a new fad hamburger diet
B)a decrease in population size
C)a rise in the price of French fries,a complement of hamburgers
D)a decrease in consumer income if hamburgers are a normal good
E)a news report that hamburgers can cause skin diseases

Question 35

Suppose income increases.Choose the correct statement.

A)The equilibrium price of turnips falls if a turnip is an inferior good.
B)The equilibrium price of turnips rises if a turnip is an inferior good.
C)The equilibrium quantity of turnips decreases if a turnip is an inferior good.
D)The supply of turnips decreases whether or not a turnip is an inferior good.
E)Both A and C.

Question 36

Which of the following "other things" are not held constant along a demand curve?

A)income
B)prices of related goods
C)the price of the good itself
D)preferences
E)expected future income and credit

Question 37

An increase in income

A)increases the demand for turnips if a turnip is an inferior good.
B)increases the demand for turnips if a turnip is a normal good.
C)increases the supply of turnips.
D)decreases the demand for turnips if turnips have a very low price.
E)decreases the supply of turnips.

Question 38

Use the figure below to answer the following questions.
Figure 3.2.2
Refer to Figure 3.2.2.Which one of the following represents a decrease in quantity demanded?

A)a shift from D₁ to D₂
B)a shift from D₂ to D₁
C)a movement from A to B
D)a movement from B to A
E)none of the above

Question 39

Some sales managers are talking shop.Which one of the following quotations refers to a rightward shift of the demand curve?

A)"Since our competitors raised their prices,our sales have doubled."
B)"It has been an unusually harsh winter;our sales of wool scarves are up from last year."
C)"We decided to cut our prices,and the increase in our sales has been remarkable."
D)"The Green movement has sparked an increase in our sales of biodegradable products."
E)All of the above except C.

Question 40

Some sales managers are talking shop.Which of the following quotations refers to a movement along the demand curve?

A)"Since our competitors raised their prices,our sales have doubled."
B)"It has been an unusually mild winter;our sales of wool scarves are down from last year."
C)"We decided to cut our prices,and the increase in our sales has been remarkable."
D)"The Green movement has sparked an increase in our sales of biodegradable products."
E)None of the above.

Question 41

An increase in supply is shown by

A)a movement down along the supply curve.
B)a movement up along the supply curve.
C)a rightward shift of the supply curve.
D)a leftward shift of the supply curve.
E)an initial movement up and then down along the same supply curve.

Question 42

Some producers are chatting over a beer.Which one of the following quotations refers to a rightward shift of the supply curve?

A)"Wage increases have forced us to raise our prices."
B)"Our new,sophisticated equipment will enable us to undercut our competitors."
C)"Raw material prices have sky-rocketed;we will have to pass the cost on to our customers."
D)"We anticipate a big increase in demand.Our product price should rise,so we are planning for an increase in output."
E)Both A and C.

Question 43

Which one of the following would not shift the supply curve of good X to the right?

A)a fall in the price of the factors of production used in producing X
B)an improvement in technology used in the production of X
C)a rise in the price of X
D)an increase in the price of Y,a complement in production of X
E)a fall in the price of Y,a substitute in production of X

Question 44

People buy more of good 1 when the price of good 2 rises.Good 1 and good 2 are

A)complements.
B)substitutes.
C)normal goods.
D)inferior goods.
E)substitutes in production

Question 45

The supply curve of a good slopes upward to the right because of

A)technological improvements over time.
B)the law of supply.
C)the law of demand.
D)the existence of substitutes in production.
E)the fact that prices tend to rise over time.

Question 46

If a factor of production can be used to produce either good A or good B,then A and B are

A)substitutes in production.
B)complements in production.
C)substitutes.
D)complements.
E)normal goods.

Question 47

If a producer can use its factors of production to produce either good A or good B,then a rise in the price of A

A)increases the supply of B.
B)decreases the supply of A.
C)increases the supply of A.
D)decreases the supply of B.
E)both C and D.

Question 48

Which one of the following will shift the supply curve of good X leftward?

A)a decrease in the wages of workers employed to produce X
B)an increase in the cost of machinery used to produce X
C)a technological improvement in the production of X
D)a situation where quantity demanded exceeds quantity supplied
E)a decrease in the cost of capital used to produce X

Question 49

A decrease in the quantity supplied is shown by a

A)movement down along the supply curve.
B)movement up along the supply curve.
C)rightward shift of the supply curve.
D)leftward shift of the supply curve.
E)rightward shift of the demand curve.

Question 50

A rise in the price of a good

A)decreases demand for the good.
B)creates a movement up along the supply curve.
C)creates a movement down along the demand curve.
D)increases the supply of the good.
E)increases preferences for the good.

Question 51

The law of supply tells us that other things remaining the same,as the

A)price of gasoline falls,the quantity of gasoline supplied decreases.
B)price of gasoline rises,the quantity of gasoline supplied decreases.
C)supply of gasoline increases,the price of gasoline falls.
D)cost of producing gasoline falls,the supply of gasoline will increase.
E)cost of producing gasoline increases,the price of gasoline rises.

Question 52

Oatmeal is a normal good and cold cereal is a substitute for oatmeal.Raisins are a complement of oatmeal.Which of the following increases the demand for oatmeal?

A)an increase in the price of raisins
B)a decrease in income
C)a decrease in population
D)an increase in the price of cold cereal
E)an increase in the supply of oatmeal

Question 53

A shift of the supply curve for rutabagas occurs if there is

A)a change in preferences for rutabagas.
B)a change in the price of a related good that is a substitute for rutabagas.
C)a change in income.
D)a change in the price of rutabagas.
E)none of the above.

Question 54

The fact that a fall in the price of a good results in a decrease in the quantity of the good supplied illustrates

A)the law of supply.
B)the law of demand.
C)a change in supply.
D)the nature of an inferior good.
E)technological improvement.

Question 55

If goods X and Y are substitutes in production,then a rise in the price of good X

A)increases the demand for good Y.
B)decreases the demand for good Y.
C)increases the supply of good Y.
D)decreases the supply of good Y.
E)might change the supply of Y;it depends on whether X and Y are also substitutes.

Question 56

Which of the following will shift the supply curve of good X rightward?

A)a decrease in the wages of workers employed to produce good X
B)an increase in the cost of capital used to produce good X
C)an increase in the price of energy
D)a decrease in the number of suppliers of good X
E)the price of Y,a substitute in production for good X,rises

Question 57

Some producers are chatting over a beer.Which one of the following quotations refers to a movement along the supply curve?

A)"Wage increases have forced us to raise our prices."
B)"Our new,sophisticated equipment will enable us to undercut our competitors."
C)"Raw material prices have sky-rocketed;we will have to pass the cost on to our customers."
D)"We anticipate a big increase in demand.Our product price should rise,so we are planning for an increase in output."
E)"New competitors in the industry are causing prices to fall."

Question 58

If Hamburger Helper is an inferior good,then,ceteris paribus,a decrease in income will lead to

A)a leftward shift of the demand curve for Hamburger Helper.
B)a rightward shift of the demand curve for Hamburger Helper.
C)a movement up along the demand curve for Hamburger Helper.
D)a movement down along the demand curve for Hamburger Helper.
E)an initial movement up and then down along the demand curve for Hamburger Helper.

Question 59

Consider the market for cell phones.Suppose the price of a cell phone falls.Explain the effect of this event on the quantity of cell phones demanded and on the demand for cell phones.

A)The quantity of cell phones demanded is unchanged and the demand for cell phones increases.
B)The quantity of cell phones demanded decreases and the demand for cell phones is unchanged.
C)The quantity of cell phones demanded increases and the demand for cell phones is unchanged.
D)The quantity of cell phones demanded increases and the demand for cell phones also increases.
E)The quantity of cell phones demanded is unchanged and the demand for cell phones decreases.

Question 60

If the number of suppliers of good Y increases,then

A)a movement up along the supply curve of good Y will occur.
B)a movement down along the supply curve of good Y will occur.
C)the supply curve of good Y shifts rightward.
D)the supply curve of good Y shifts leftward.
E)the supply curve of good Y will remain unchanged.

Question 61

A decrease in the quantity supplied of a good is shown by

A)a movement down along the supply curve.
B)a leftward shift of the supply curve.
C)a movement up along the supply curve.
D)a rightward shift of the supply curve.
E)an initial rightward shift and then leftward shift of the supply curve.

Question 62

Use the table below to answer the following questions.
Table 3.4.1
$$\begin{array} { c c c } \begin{array} { c } \text { Price } \\\text { (dollars per } \\\text { unit) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Demanded } \\\text { (units) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Supplied } \\\text { (units) }\end{array} \\1 & 1,100 & 50 \\2 & 800 & 200 \\3 & 600 & 420 \\4 & 500 & 500 \\5 & 420 & 580 \\6 & 350 & 640 \\7 & 320 & 680 \\8 & 300 & 700\end{array}$$

-In Table 3.4.1,the equilibrium price is

A)$7 a unit.
B)$5 a unit.
C)$4 a unit.
D)$3 a unit.
E)$1 a unit.

Question 63

Use the figure below to answer the following questions.
Figure 3.4.1
At price P₂ in Figure 3.4.1,which one of the following is not true?

A)This market is in equilibrium.
B)The quantity demanded is equal to the quantity supplied.
C)The quantity demanded is Q₁.
D)There is no surplus.
E)The quantity supplied is Q₃.

Question 64

Use the figure below to answer the following questions.
Figure 3.4.1
At price P₁ in Figure 3.4.1,

A)producers can sell all they plan to sell.
B)consumers can buy all they want.
C)producers are unwilling to sell any goods.
D)a surplus exists.
E)both sides of the market are able to carry out their desired transactions.

Question 65

Use the table below to answer the following questions.
Table 3.4.1
$$\begin{array} { c c c } \begin{array} { c } \text { Price } \\\text { (dollars per } \\\text { unit) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Demanded } \\\text { (units) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Supplied } \\\text { (units) }\end{array} \\1 & 1,100 & 50 \\2 & 800 & 200 \\3 & 600 & 420 \\4 & 500 & 500 \\5 & 420 & 580 \\6 & 350 & 640 \\7 & 320 & 680 \\8 & 300 & 700\end{array}$$

-Refer to Table 3.4.1.The equilibrium quantity is 420 units if

A)the price is fixed at $3 a unit.
B)the price is fixed at $4 a unit.
C)the price is fixed at $5 a unit.
D)both A and C are correct.
E)none of the above.

Question 66

Use the table below to answer the following questions.
Table 3.4.1
$$\begin{array} { c c c } \begin{array} { c } \text { Price } \\\text { (dollars per } \\\text { unit) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Demanded } \\\text { (units) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Supplied } \\\text { (units) }\end{array} \\1 & 1,100 & 50 \\2 & 800 & 200 \\3 & 600 & 420 \\4 & 500 & 500 \\5 & 420 & 580 \\6 & 350 & 640 \\7 & 320 & 680 \\8 & 300 & 700\end{array}$$

-Refer to Table 3.4.1.If the price is $3,then the shortage is

A)zero units.
B)1,050 units.
C)180 units.
D)600 units.
E)160 units.

Question 67

Which of the following shifts the supply curve for good X leftward?

A)a situation in which the quantity demanded of X exceeds the quantity supplied of X
B)an increase in the cost of the machinery used to produce X
C)a technological advance in the production of X
D)a decrease in the wages of workers employed to produce X
E)a situation in which the quantity supplied of X exceeds the quantity demanded of X

Question 68

Use the figure below to answer the following questions.
Figure 3.4.1
At price P₁ in Figure 3.4.1

A)there is a surplus in the amount of Q₄ - Q₂.
B)there is a shortage in the amount of Q₄ - Q₂.
C)there is a tendency for the price to fall.
D)the equilibrium quantity is Q₂.
E)the equilibrium quantity is Q₄.

Question 69

Some producers are chatting over a beer.Which one of the following quotations refers to a leftward shift of the supply curve?

A)"Wage increases have forced us to raise our prices."
B)"Our new,sophisticated equipment will enable us to undercut our competitors."
C)"Raw material prices have sky-rocketed;we will have to pass the cost on to our customers."
D)"We anticipate a big increase in demand.Our product price should rise,so we are planning for an increase in output."
E)Both A and C.

Question 70

Use the figure below to answer the following questions.
Figure 3.4.2
The equilibrium price in the market illustrated by Figure 3.4.2 is

A)$2 a unit.
B)$4 a unit.
C)$6 a unit.
D)$8 a unit.
E)$10 a unit.

Question 71

Use the table below to answer the following questions.
Table 3.4.1
$$\begin{array} { c c c } \begin{array} { c } \text { Price } \\\text { (dollars per } \\\text { unit) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Demanded } \\\text { (units) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Supplied } \\\text { (units) }\end{array} \\1 & 1,100 & 50 \\2 & 800 & 200 \\3 & 600 & 420 \\4 & 500 & 500 \\5 & 420 & 580 \\6 & 350 & 640 \\7 & 320 & 680 \\8 & 300 & 700\end{array}$$

-Refer to Table 3.4.1.If the price is $7,then the surplus is

A)360 units.
B)400 units.
C)160 units.
D)zero units.
E)290 units.

Question 72

Use the figure below to answer the following questions.
Figure 3.4.1
At price P₃ in Figure 3.4.1,

A)this market is in equilibrium.
B)there is a shortage in the amount of Q₅ - Q₁.
C)there is a tendency for the price to rise.
D)equilibrium quantity is Q₅.
E)there is a surplus in the amount of Q₅ - Q₁.

Question 73

Use the table below to answer the following questions.
Table 3.4.1
$$\begin{array} { c c c } \begin{array} { c } \text { Price } \\\text { (dollars per } \\\text { unit) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Demanded } \\\text { (units) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Supplied } \\\text { (units) }\end{array} \\1 & 1,100 & 50 \\2 & 800 & 200 \\3 & 600 & 420 \\4 & 500 & 500 \\5 & 420 & 580 \\6 & 350 & 640 \\7 & 320 & 680 \\8 & 300 & 700\end{array}$$

-In Table 3.4.1,the equilibrium quantity is

A)200 units.
B)320 units.
C)420 units.
D)500 units.
E)none of the above;there is no equilibrium.

Question 74

Which of the following decreases the supply of popcorn?

A)a decrease in the price of popcorn
B)an increase in the price of popcorn
C)a technological advance in the production of popcorn
D)a decrease in the demand for popcorn
E)a decrease in the number of popcorn producers

Question 75

Use the table below to answer the following questions.
Table 3.4.1
$$\begin{array} { c c c } \begin{array} { c } \text { Price } \\\text { (dollars per } \\\text { unit) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Demanded } \\\text { (units) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Supplied } \\\text { (units) }\end{array} \\1 & 1,100 & 50 \\2 & 800 & 200 \\3 & 600 & 420 \\4 & 500 & 500 \\5 & 420 & 580 \\6 & 350 & 640 \\7 & 320 & 680 \\8 & 300 & 700\end{array}$$

-Refer to Table 3.4.1.A surplus occurs if

A)the price is $2 a unit.
B)the price is $3 a unit.
C)the price is above $4 a unit.
D)the price is $1 a unit.
E)the price is $4 a unit.

Question 76

At a price of $4 a unit in Figure 3.4.2

A)the equilibrium quantity is 400 units.
B)there is a surplus of 200 units.
C)the quantity supplied is 400 units.
D)there is a shortage of 200 units.
E)the quantity demanded is 200 units.

Question 77

At a price of $10 a unit in Figure 3.4.2

A)there is a surplus of 200 units.
B)there is a shortage of 200 units.
C)there is a surplus of 400 units.
D)there is a shortage of 400 units.
E)quantity will rise.

Question 78

Use the table below to answer the following questions.
Table 3.4.1
$$\begin{array} { c c c } \begin{array} { c } \text { Price } \\\text { (dollars per } \\\text { unit) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Demanded } \\\text { (units) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Supplied } \\\text { (units) }\end{array} \\1 & 1,100 & 50 \\2 & 800 & 200 \\3 & 600 & 420 \\4 & 500 & 500 \\5 & 420 & 580 \\6 & 350 & 640 \\7 & 320 & 680 \\8 & 300 & 700\end{array}$$

-Refer to Table 3.4.1.At a price of $3 a unit

A)the market is in equilibrium.
B)there is a 180-unit surplus.
C)there is a 180-unit shortage.
D)there is a tendency for the price to rise.
E)C and D.

Question 79

Use the table below to answer the following questions.
Table 3.4.1
$$\begin{array} { c c c } \begin{array} { c } \text { Price } \\\text { (dollars per } \\\text { unit) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Demanded } \\\text { (units) }\end{array} & \begin{array} { c } \text { Quantity } \\\text { Supplied } \\\text { (units) }\end{array} \\1 & 1,100 & 50 \\2 & 800 & 200 \\3 & 600 & 420 \\4 & 500 & 500 \\5 & 420 & 580 \\6 & 350 & 640 \\7 & 320 & 680 \\8 & 300 & 700\end{array}$$

-Refer to Table 3.4.1.A shortage occurs if

A)the price is $7 a unit.
B)the price is $4 a unit.
C)the price is $5 a unit.
D)the price is below $4 a unit.
E)the price is $6 a unit.

Question 80

Use the figure below to answer the following questions.
Figure 3.4.2
Refer to Figure 3.4.2.When the price is $10 a unit

A)consumers will buy only 100 units of output.
B)consumers will buy 500 units of output.
C)consumers will buy nothing.
D)a shortage occurs.
E)the surplus is zero.