ECON 101 Study Guide - Midterm Guide: Demand Curve, Economic Equilibrium, Root Mean Square

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ECON 101 Full Course Notes

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Document Summary

Unless a question explicitly says otherwise, assume that all demand curves slope downward, all supply curves slope upward, and there are no externalities. For the true / false section, mark box a for true and box b for false. Each correct answer adds 2 points to your score. For the multiple choice section, mark the best answer choice. Each correct answer adds 5 points to your score. Each blank answer adds 1 point to your score. Multiple choice: a ppf with the quantity of agricultural crops (in bushels) on the x-axis and the number of showers on the y-axis is outward bowed. Page 2 of 20: suppose the demand for co ee beans increases, while at the same time a co ee plant fungus devastates co ee plantations. These two events together cause the equilibrium quantity of co ee beans to decrease and the equilibrium price of co ee beans to increase.

Related Questions

Paraphrase each of the following statement and provide two illustrative examples.

1. The price falls when there is a surplus and rises when there is a shortage

Paraphrase

Example 1

Example 2

2. Not all markets equilibrate at the same speed.

Paraphrase

Example 1

Example 2

3. The maximum price that buyers are willing to pay for a good and the minimum price sellers are willing to accept for the good will help determine whether trade takes place between buyers and sellers.

Paraphrase

Example 1

Example 2

4. Equilibrium price and quantity are determined by supply and demand.

Paraphrase

Example 1

Example 2

1) All else being equal, the more imprtant an item is in buyers' budgets, the more elastic is demand for the good. (TRUE/FALSE)

2) If the demand curve for a good is a steep, straight line, then the demand for the good is inelastic at every point along that demand curve. (TRUE/FALSE)

3)If the demand for illegal drugs is inelastic, then government efforts to reduce the supply of illegal drugs are likely to cause an increase in total expenditure on them. (TRUE/FALSE)

4) If the demand for mass transit in a city is inelastic, then raising fares will increase mass transit revenue. (TRUE/FALSE)

5)The cross-price elasticity of demand between Levi's blue jeans and Wrangler's blue jeans is most likely positive (TRUE/FALSE)

6) Perfectly inelastic demand occurs when the demand curve is horizontal. (TRUE/FALSE)

7) Among the reasons that farmers' incomes are unstable is _____
A) The supply curve for food can shift dramatically rightward or leftward from year to year.
B) The demand for food is elastic
C) The income elasticity for food is very high
D) All of these
E) None of these

8) If the (absolute value of) the price elasticity of demand for a good is greater than one, then demand for the good is _____
A) Elastic
B) Inelastic
C) Inferior
D) Normal
E) Paranormal

9) As we move leftward along a straight-line demand curve, the (absolute value of the) price elasticity of demand ____
A) Grows smaller
B) Remains constant at zero
C) Remains constant at a value of one
D) Remains constant and equal to the (absolute value of the) slope of the demand curve
E) Grows larger

10) If a good is normal, we know that______
A) income elasticity is positive
B) The good's price elasticity of demand is positive
C) Demand for the good is elastic
D) Demand for the good is inelastic
E) Income elasticity is negative

11) When the price of a good rises by 10%, and nothing else changes, the quantity of the good demanded falls by 5%. The price elasticity of demand fort this good is_____
A) -0.5%
B) -5%
C) -5.0%
D) -2.0%
E) 2.0%

12) If the price elasticity of demand for a good is negative, we know that the good _____.
A) Obey's the law of demand
B) Is normal
C) Is inferior
D) Violates the law of demand
E) is inelastically demanded

13) Which of the following would you expect to have the greatest (in absolute value) price elasticity of demand?
A) Clothing
B) Pants
C) Blue jeans
D) Levi's Blue jeans
E) All of these answers would have approximately the same price elasticity of demand.

14) The price elasticity of demand for a good is -2.0 When the proce of this good rises, what occurs?
A) Quantity demanded will rise as well
B) The income of those who buy the good will increase
C) Total expenditure on this good will fall.
D) All of these
E) All of these answers would have approximately the same price elasticity of demand.

carminewildebeest5

QUESTION 1

The demand for oranges increases while the supply decreases. The equilibrium price of oranges ________, and the equilibrium quantity ________.

		falls; increases
		falls; perhaps changes but we can't say if it increases, decreases, or stays the same
		rises; decreases
		rises; perhaps changes but we can't say if it increases, decreases, or stays the same

1 points

QUESTION 2

Assume a competitive market is in equilibrium. There is an increase in demand, but no change in supply. As a result the equilibrium price ________, and the equilibrium quantity is ________.

		rises; increases
		falls; decreases
		falls; does not change
		rises; does not change

1 points

QUESTION 3

Bagels and cream cheese are complementary goods. Suppose that the price for flour, which is used to produce bagels, increases. The equilibrium price of cream cheese ________ and the equilibrium quantity of cream cheese ________.

		does not change; does not change
		rises; increases
		falls; decreases
		rises; decreases

1 points

QUESTION 4

If consumers buy a large number of plug-in electric cars, the equilibrium price of electricity will ________ and the equilibrium quantity of electricity will ________.

		rise; increase
		rise; decrease
		fall; increase
		fall; decrease

1 points

QUESTION 5

Which of the following shifts the supply curve for oranges?

		an increase in income for all orange consumers if oranges are a normal good
		disastrous weather that destroys about half of this year's orange crop
		an increase in the price of bananas, a substitute in consumption for oranges
		a newly discovered increase in the nutritional value of oranges

1 points

QUESTION 6

Which of the following shifts the supply curve of rutabagas rightward? (A rutabaga is a potato-like vegetable.)

		normal goods in production.
		an exceptionally cold summer that killed much of the rutabaga crop.
		a fall in the price of fertilizer used to grow rutabagas.
		an increase in the price of a rutabaga

1 points

QUESTION 7

Suppose over the next several years the productivity of firms producing electric cars improves dramatically. The advance in productivity leads to

		an increase in the supply electric cars so that the supply curve shifts rightward.
		an increase in the supply of electric cars so that the supply curve shifts leftward.
		a decrease in the supply of electric cars so that the supply curve shifts rightward.
		a decrease in the supply of electric cars so that the supply curve shifts leftward.

1 points

QUESTION 8

Hot dogs and hot dog buns are complements. If the price of a hot dog falls, then

		the demand for hot dogs will increase.
		the demand for hot dog buns will decrease.
		the quantity demanded of hotdogs will decrease.
		the demand for hot dog buns will increase.

1 points

QUESTION 9

Demand curves slope ________ because as the price increases and other things remain the same, the quantity demanded ________.

		upward; increases
		downward; decreases
		upward; decreases
		downward; increases

1 points

QUESTION 10

Water bottlers announce that next month the price of bottled water will rise by 25 percent. Which of the following occurs immediately?

		The quantity of bottled water demanded increases.
		The demand for bottled water increases.
		The quantity of bottled water demanded decreases.
		The demand for bottled water decreases.

1 points

QUESTION 11

If the price of carrots is below the equilibrium price, the

		quantity supplied of carrots exceeds the quantity demanded and a shortage exists.
		quantity demanded of carrots exceeds the quantity supplied and a shortage exists.
		quantity supplied of carrots exceeds the quantity demanded and a surplus exists.
		quantity demanded of carrots exceeds the quantity supplied and a surplus exists.

1 points

QUESTION 12

Which of the following is true regarding demand?
i. Demand is the relationship between quantity demanded and the price of a good when all other influences on buying plans remain the same.
ii. Demand refers to one quantity at one time.
iii. "Demand" and " quantity demanded" are the same thing.

		both i and ii
		i only.
		ii only.
		iii only.

1 points

QUESTION 13

Suppose the current price of a pound of steak is $6 per pound and the equilibrium price is $9 per pound. What takes place?

		There is a shortage, so the price rises and quantity demanded decreases.
		There is a shortage, so the price rises and quantity demanded increases.
		There is a shortage, so the price falls and quantity demanded increases.
		There is a surplus, so the price falls and quantity demanded increases.

1 points

QUESTION 14

The number of corn producers increases, so the supply of corn ________ and the supply curve of corn ________.

		decreases; shifts leftward
		decrease; shifts rightward
		increases; shifts rightward
		increases; shifts leftward

1 points

QUESTION 15

Market equilibrium

i. can never occur because there are always people who want a good but cannot afford it.

ii. occurs at the intersection of the supply and demand curves.

iii. is the point where the price equals the quantity.

		iii only
		ii and iii
		ii only
		i only

1 points

QUESTION 16

Milk can be used to produce cheese or butter. If the price of a pound of butter rises, what happens to the supply of cheese?

		The supply of cheese stays the same and there is a decrease in the quantity supplied of cheese.
		The supply of cheese decreases.
		The supply of cheese stays the same and there is no change in the quantity supplied of cheese.
		The supply of cheese increases.

1 points

QUESTION 17

Consumers regard Dell computers and Apple computers as substitutes. If the price of a Dell computer decreases, the

		demand for Dell computers decreases.
		demand for Apple computers increases.
		demand for Apple computers decreases.
		demand for Dell computers increases.

1 points

QUESTION 18

Suppose the current price of a pound of steak is $12 per pound and the equilibrium price is $9 per pound. In this case, there is a

		surplus, so the price rises and quantity demanded increases.
		shortage, so the price rises and quantity demanded decreases.
		surplus, so the price falls and quantity demanded increases.
		shortage, so the price falls and quantity demanded increases.

1 points

QUESTION 19

Plywood is used in the construction of houses. If the price of plywood rises, what happens to the supply of houses?

		The supply increases so that the supply curve shifts rightward.
		The quantity supplied increases but there is no shift in the supply curve.
		The supply decreases so that the supply curve shifts leftward.
		The quantity supplied decreases but there is no shift in the supply curve.

1 points

QUESTION 20

In stores, it is common to find seasonal products marked down when the season ends. What explains this behavior?

		The store is trying to increase its customers' demand for the product.
		The law of demand is being used to increase the quantity demanded.
		The store manager must be trying to drive away customers by selling low quality products.
		The store is trying to increase its consumer's incomes by increasing their purchasing power.

1 points

QUESTION 21

Suppose that the price of flour used to produce bagels increases. Hence the equilibrium price of a bagel ________ and the equilibrium quantity ________.

		rises; increases
		rises; decreases
		falls; increases
		falls; decreases

1 points

QUESTION 22

If both the supply and demand curves shift simultaneously, we can always predict what will happen to

		either the price or the quantity, but not both.
		only the quantity.
		only the price.
		both the price and the quantity.

1 points

QUESTION 23

If income increases and the demand for bus rides decreases,

		bus rides are a substitute good.
		consumers are behaving irrationally.
		bus rides are an inferior good.
		bus rides are a normal good.

1 points

QUESTION 24

A surplus of cardboard boxes means that

		at the current price of a cardboard box, the quantity demanded equals the quantity supplied and the price will fall to restore the equilibrium..
		the current price of a cardboard box is less than the equilibrium price.
		at the current price of a cardboard box, the quantity demanded exceeds the quantity supplied.
		at the current price of a cardboard box, the quantity demanded is less than the quantity supplied.

1 points

QUESTION 25

If a freeze destroys oranges before they are harvested, the equilibrium price of an orange ________ and the equilibrium quantity ________.

		rises; increases
		rises; decreases
		falls; increases
		falls; decreases

1 points

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ECON 101 Study Guide - Midterm Guide: Demand Curve, Economic Equilibrium, Root Mean Square

ECON 101 Full Course Notes

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