ECO-2013 Lecture Notes - Lecture 3: Shortage, Excess Supply, Economic Surplus

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scarletbear673

10 Mar 2016

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Chapter 3: demand, supply, and the market process. *skip secions: consumer surplus and responsiveness of quanity demanded to price changes* The law of demand the inverse relaionship between price and quanity demanded; when price rises, quanity demanded falls. Ways to express law of demand: words, table, math equaion, and picture. Changes in demand versus changes in quanity demanded. Types of change: when price changes, quanity demanded changes but demand does not change, movement along the curve, when something else changes, demand changes (the relaionship changes, the enire curve shits. Other variables besides price that determine what you buy a: number of consumers, prices of related goods (subsitutes and complements, expectaions, demographics f. If price is the reason, then quanity demanded changed. If any variable besides price is the reason, then demand changes (the curve shits) *skip secions: producer surplus and responsiveness of quanity supplied to price change* The law of supply the posiive relaionship between price and quanity supplied.

Related Questions

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

turquoisedeer344

1. The concept of price elasticity of demand measures:

a. the slope of the demand curve.

b. the number of buyers in a market.

c. the extent to which the demand curve shifts as the result of a price decline.

d. the sensitiveness of quantities demanded to price changes.

2. When the percentage change in price is less than the resulting percentage change in quantity demanded:

a. demand is elastic.

b. demand is inelastic.

c. demand is unit elastic.

d. none of the above.

3. The elasticity of demand:

a. will be the same at each price-quantity combination on a stable demand curve.

b. tends to be elastic in high-price ranges and inelastic in low-price ranges.

c. tends to be inelastic in high-price ranges and elastic in low-price ranges.

d. is infinitely large for a perfectly inelastic demand curve.

4. Suppose that as the price of Y falls from $2.00 to $1.80 the quantity of Y demanded increases from 110 to 121. It can be concluded that the price elasticity of demand is: _______.

5. Total revenue rises as the price of a good increases if price elasticity of demand is:

a. unitary elastic

b. perfectly inelastic.

6. The demand for such products as salt, bread, and electricity tend to be:

a. relatively price elastic.

b. relatively price inelastic.

c. of unit price elasticity.

d. perfectly price elastic.

coffeeelephant81

Question 16

If price is cut and demand is elastic, total revenue will rise because

		the change in quantity demanded is greater than the percent change in price.
		the percent change in quantity demanded is greater than the change in price.
		the percent change in quantity demanded is greater than the percent change in price.
		customers can't find substitutes.

3 points

Question 17

If price is cut and demand is inelastic, total revenue will fall because

		the change in quantity demanded is less than the percent change in price.
		the percent change in quantity demanded is less than the change in price.
		the percent change in quantity demanded is less than the percent change in price.
		customers can find substitutes.

3 points

Question 18

If something is addictive, then

price and demand are inversely related.

price elasticity of demand is equal to one.

demand is perfectly inelastic.

demand is perfectly elastic.

3 points

Question 19

In general, elasticities measure

		the change in quantity demanded when a product attribute changes.
		the change in consumer spending when income changes.
		the change in an attribute for a percentage change in price.
		the percentage change in the quantity demanded resulting from a fixed percentage change in some attribute.

3 points

Question 20

Average total costs are defined as

total costs divided by the change in output.

total costs divided by output.

the change in total costs when output changes.

average variable costs plus marginal costs.

3 points

Question 21

If a firm is experiencing economies of scale, then the long-run average cost curve is

falling.

rising.

horizontal.

shifting.

3 points

Question 22

If average total cost is rising

marginal cost is above average total cost.

marginal cost is rising.

marginal product is rising.

marginal cost is above average total cost and is falling.

3 points

Question 23

The period of time over which all inputs are variable is the

market horizon.

short run.

calendar year.

long run.

3 points

Question 24

The supply chain refers to

the supply curve.

the process of outsourcing.

the process of downsizing.

the process of creating and selling a product.

3 points

Question 25

When the capital (a fixed input) changes

short-run marginal costs rise.

short-run average total costs fall but do not shift.

labor inputs decline.

the short-run average total cost curve shifts.

3 points

Question 26

A market of price takers is called

perfectly competitive.

monopolistically competitive.

a monopoly.

an oligopoly.

3 points

Question 27

A market with a single seller is called

perfectly competitive.

monopolistically competitive.

a monopoly.

an oligopoly.

3 points

Question 28

A market that mainly stresses product differentiation is called

perfectly competitive.

monopolistically competitive.

a monopoly.

an oligopoly.

3 points

Question 29

Entry into a competitive market will continue until

economic profits are zero.

normal profits are zero.

when accounting losses are zero.

a. and b. are true

3 points

Question 30

Firms in an oligopoly

act independently.

engage in strategic behavior.

have perfect knowledge of the behavior of others.

openly collude.

ECO-2013 Lecture Notes - Lecture 3: Shortage, Excess Supply, Economic Surplus

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Related Questions

		price and demand are inversely related.
		price elasticity of demand is equal to one.
		demand is perfectly inelastic.
		demand is perfectly elastic.

		total costs divided by the change in output.
		total costs divided by output.
		the change in total costs when output changes.
		average variable costs plus marginal costs.

		marginal cost is above average total cost.
		marginal cost is rising.
		marginal product is rising.
		marginal cost is above average total cost and is falling.

		the supply curve.
		the process of outsourcing.
		the process of downsizing.
		the process of creating and selling a product.

		short-run marginal costs rise.
		short-run average total costs fall but do not shift.
		labor inputs decline.
		the short-run average total cost curve shifts.

		perfectly competitive.
		monopolistically competitive.
		a monopoly.
		an oligopoly.

		economic profits are zero.
		normal profits are zero.
		when accounting losses are zero.
		a. and b. are true

		act independently.
		engage in strategic behavior.
		have perfect knowledge of the behavior of others.
		openly collude.

		falling.
		rising.
		horizontal.
		shifting.

		market horizon.
		short run.
		calendar year.
		long run.