ECON-1010 Chapter Notes - Fall 2018 Chapter 4 - Complementary good, Equilibrium point, Allocative efficiency

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puceprairie-dog362

21 Sep 2018

School

Vanderbilt University

Department

Economics

Course

ECON-1010

Professor

Stephen Buckles

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ECON-1010 Full Course Notes

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Document Summary

Market: a means for individuals and businesses to exchange goods, services, assets, and labor. Where buyers and sellers come together to exchange. Might buy more if it"s cheaper or if something new has come out, have pocket change. Ceteris-paribus: latin for with other conditions remaining the same. in economics, we use this to underline that no other variables are changing. Only examining one thing that changes, one variable. If price were to rise, might switch to less expensive option or a seemingly unrelated object. Switch to spotify instead of albums or switch to movies instead of music. Law of demand: if everything else remains unchanged, a decrease in price will cause the quantity demanded to increase. An increase in price will cause the quantity demanded to decrease. More expensive, buy less and vice versa. The opportunity cost is greater have to give up more to get the more expensive good.

Related Questions

Question 26 pts

Which of the following is not a reason why specialization and trade are beneficial to society?

	Specialization fosters learning by doing, thus lowering the unit-costs of products
	Firms and workers become less dependent on others for producing goods and services

	The total output of economic goods may be increased even without any increase in resources
	Scarce resources are utilized more efficiently by exploiting differences among them

Question 27 pts

Laissez-faire capitalism limits the government's economic functions to the following, except:

	Protecting private property rights
	Establishing a legal environment to enforce contracts among individuals

	Setting prices of individual goods and services
	Preventing individuals and firms from coercing others

Question 28 pts

A production system where various workers concentrate on different specialized tasks to contribute towards a whole product is referred to as:

	Roundabout production
	A coincidence of wants

	Freedom of enterprise
	Division of labor

Question 29 pts

The market system is said to be characterized by "consumer sovereignty." This is because:

	A sovereign government determines which consumer goods will be produced
	Firms must match their production decisions to the consumers' choices

	The prices of consumer goods are regulated by a sovereign government
	Consumer goods are considered to be more important than capital goods

Question 30 pts

Consumers express self-interest when they:

	Seek the lowest price for a product
	Reduce business losses

	Exclude others in their thinking
	Collect economic profits

Question 311 pts

Refer to the above graph with three demand curves. An "increase in quantity demanded" would be illustrated by a change from:

	Point 5 to point 1
	Point 4 to point 1

	Point 2 to point 5
	Point 4 to point 6

Question 32 pts

The table below shows the weekly demand for hamburger in a market where there are just three buyers.

Refer to the above table. At a price of $6, the weekly market quantity demanded for hamburger is:

	17
	23

	24
	18

Question 33pts

If farmers withhold some of their current corn harvest from the market because they anticipate a higher price of corn in the near future, then this would cause a(n):

	Movement up along the current supply curve of corn
	Movement down along the current supply curve of corn

	Leftward shift in the current supply of corn
	Rightward shift in the current supply of corn

Question 34 pts

Which of the following will not cause the supply curve to shift?

	A technological change in the production of the good
	A change in the prices of other goods that producers could be producing

	A change in the costs of resources needed to produce the good
	A change in the price of the good

Question 35 pts

All of the following would affect the position of the supply curve for cranberries, except the:

	Price of agricultural land for cranberries
	Cost of fertilizers for cranberry production

	Popularity of cranberry drinks
	Development of a new pest control for cranberries

Question 36 pts

When high-school and college graduates apply for jobs in the labor markets,

	Job applicants and employers are both "buyers".
	Job applicants are the "sellers" while employers are the "buyers".

	Job applicants and employers are both "sellers".
	Job applicants are the "buyers" while employers are the "sellers".

Question 37 pts

Refer to the figure above, which shows three supply curves for corn. Which of the following would cause the supply of corn to shift from S₁ to S₂?

	A decrease in consumer incomes, assuming corn is a normal good
	The development of a more effective insecticide against corn rootworm

	An increase in the price of fertilizer
	A change in consumer tastes away from cornbread

Question 38 pts

Which is of the following statements is correct?

	If demand increases, then price will decrease
	If demand decreases, then price will decrease

	If price decreases, then demand will decrease
	If price increases, then demand will decrease

Question 39 pts

Which would be a likely cause of an increase in the demand for pizza?

	A decrease in the price of hamburger sandwiches
	A health report showing eating pizza reduces stress

	A reduced desire for take-out and fast-food dining
	A decrease in the prices of cheese, pepperoni, and mushrooms

Question 40 pts

A market for a product reaches equilibrium when:

	Price falls further after there is a shortage
	The price rises further after there is a surplus

	Buyers intend to buy a quantity equal to the quantity that sellers intend to sell
	The actual quantity bought by buyers equals actual quantity sold by sellers

Question 41 pts

A higher price reduces the quantity demanded for a product because:

	Individuals can afford less of the product and will switch to substitutes
	The financial assets of individuals increase

	Individuals will buy more of the product and less of its substitutes
	The purchasing power of individuals increases

Question 42 pts

The idea of the Law of Demand, as applied to electric cars, assumes which of the following to be constant?

	Price of electric cars
	How much sellers are charging customers for electric cars

	Price of gasoline cars
	Quantity of electric cars demanded by buyers

Question 43 pts

Use the following graph of the demand for coffee:

Refer to the above diagram of three demand curves for coffee. An increase in the price of coffee, other factors constant, would cause a:

	Movement from point a to point b
	Movement from point b to point a

	Shift from D₁ to D₂
	Shift from D₁ to D₃

Question 44 pts

Which of the following factors will decrease the current demand for a product?

	A decrease in the current price of a complementary product
	A decrease in the current price of a substitute product

	An increase in the current price of a substitute product
	An expected increase in the future price of the product

Question 45pts

In competitive markets, a surplus or shortage will:

	Cause shifts in the demand and supply curves that tend to eliminate the surplus or shortage
	Cause changes in the quantities demanded and supplied that tend to intensify the surplus or shortage

	Cause changes in the quantities demanded and supplied that tend to eliminate the surplus or shortage
	Never exist because the markets are always at equilibrium

Question 46 pts

Which of the following would cause a leftward shift in the supply curve for car washes?

	A decrease in taxes on car washes
	An increase in the price of car washing equipment

	A decrease in the price of water
	An increase in the number of cars in the city

Question 47pts

The market system automatically corrects a surplus condition in a competitive market by:

	Raising the price of the commodity in question while decreasing the quantity demanded
	Raising the price of the commodity in question while increasing the quantity demanded

	Reducing the price of the commodity in question while increasing the quantity demanded
	Reducing the price of the commodity in question while decreasing the quantity demanded

Question 48 pts

A leftward shift of the supply curve for oil in the United States is most likely to result from:

	A decrease in the world price of oil
	An increase in the costs of exploration and drilling for oil

	An increase in the subsidy for oil exploration and drilling
	A decrease in the fees that oil companies must pay for drilling licenses

Question 49 pts

A fall in the price of milk, used in the production of ice cream, will:

	Decrease the supply of ice cream
	Have no effect on the supply of ice cream

	Increase the supply of ice cream
	Cause a movement along the supply curve of ice cream

Question 50 pts

Refer to the above graph, which shows the market for beef where demand shifted from D₁ and D₂. The change in equilibrium from E₁ to E₂ is most likely to result from:

	An increase in the cost of cattle feed
	A decrease in consumer incomes

	A decrease in the tax on beef products
	An increase in the price of pork

When demand for a good is very elastic, revenue ________ when the price falls.

(2)

An elasticity measure less than one means that demand is __________.

(3)

An elasticity measure greater than one means that demand is __________.

(4)

The Latin expression ceteris paribus means

	having made all other necessary changes.
	holding constant all other variables.
	assuming all households have similar incomes.
	given the level of income in the economy.

(5)

A variable measured in terms of money is called a ____________________.

	real variable
	nominal variable
	macroeconomic variable
	microeconomic variable

(6)

Which of the following is true about the importance of money in economics?

	Money is important in both macroeconomics and microeconomics.
	Money is important in macroeconomics but not microeconomics.
	Money is important in microeconomics but not macroeconomics.
	Money is not important in either microeconomics or macroeconomics.

(7)

What is the difference between normative and positive economics?

	Positive economics is descriptive and predictive; normative economics is prescriptive.
	Positive economics highlights the positive aspects of the economy; normative economics highlights the average features.
	Positive economics studies the actions of individuals; normative economics studies the actions of households.
	Positive economics is an applied social science; normative economics is a theoretical social science.

(8)

The slope of the demand curve is negative because

	the quantity of a good demanded decreases as income declines.
	the quantity of a good demanded increases as income declines.
	the quantity of a good demanded increases as the price declines.
	the quantity of a good demanded decreases as the price declines.

(9)

What is the result of an increase in the price of bread, a normal good?

	The demand curve shifts to the right.
	The demand curve shifts to the left.
	The quantity demanded increases.
	The quantity demanded decreases.

(10)

What is the effect on demand for bread when the price of bagels, a substitute for bread, rises?

	The demand curve for bread shifts to the right.
	The demand curve for bread shifts to the left.
	The quantity of bread demanded increases.
	The quantity of bread demanded decreases.

(11)

Which of the following would cause the supply curve for bread to shift inward?

	An increase in the price of bread
	An increase in the price of bagels
	A decrease in the price of bread
	An increase in the price of flour

(12)

An improvement in technology shifts the supply curve outward because

	at every price, firms find producing the good to be more profitable.
	the price of the good increases.
	at every price, firms find producing the good to be less profitable.
	the price of the good decreases.

(13)

Which of the following factors does not affect how much bread a baker is willing to produce?

	The price of bread
	The demand for bread
	The cost of inputs
	Technology

(14)

How do expectations of prices affect how much of a good producers are willing to sell?

	Expectations of prices affect only demand, not supply.
	Actual prices, not expectations of prices, affect supply.
	If producers expect prices to fall in the future, they supply less at every price.
	If producers expect prices to rise in the future, they supply less at every price.

(15)

When the price of a good is above equilibrium level,

	the quantity demanded exceeds the quantity supplied.
	the quantity supplied exceeds the quantity demanded.
	the supply curve shifts to the left.
	the supply curve shifts to the right.

(16)

At a price of P₀ in the diagram below, which of the following statements is true?

	Supply equals demand.
	There is excess demand.
	There is excess supply.
	There is scarcity.

(17)

If demand for bread increases at every price, the equilibrium price of bread will

	fall.
	rise.
	remain unchanged.
	depend on income.

(18)

If the demand for bread declines, then

	at the original equilibrium price, there is excess demand.
	at the original equilibrium price, there is excess supply.
	the supply curve shifts to the right.
	the supply curve shifts to the left.

(19)

Peanut butter and jelly are complementary goods. When the price of peanut butter rises, the demand for jelly ________ and the price of jelly ________.

	rises; falls
	rises; rises
	falls; rises
	falls; falls

(20)

The measure of elasticity that economists use is

	always a positive number.
	always a negative number.
	positive when demand is elastic and negative when demand is inelastic.
	negative when demand is elastic and positive when demand is inelastic.

(21)

Which of the following formulas is the correct expression for the slope of a line?

(22)

Graphically how would an increase in income affect the demand for hamburgers?

	The slope of the demand curve would increase.
	The slope of the demand curve would decrease.
	The demand curve would shift outward, parallel to the original demand curve.
	The demand curve would shift inward, parallel to the original demand curve.

(23)

Given the equation P = $6.00 ? $.40Q, where P is the price of the good and Q is the quantity of the good demanded, how many units will this consumer demand if the price is $3.60?

	1.44 units
	3 units
	3.6 units
	6 units

(24)

Which of the following is true about unit elasticity?

	Revenues remain unchanged when the price changes.
	Elasticity of demand increases as one moves down the demand curve.
	Elasticity of demand decreases as one moves down the demand curve.
	The elasticity of demand is greater than one at every point along the demand curve.

(25)

Which of the following could be a determinant of the quantity demanded of a good?

	The price of the good
	The price of related goods
	Income
	Expectations about the future price of the product
	All of the above

violethare488

_____ 1. Suppose you make silver jewelry. If the price of silver falls, we would expect you to:

a. be willing and able to produce less jewelry than before at each possible price.

b. be willing and able to produce more jewelry than before at each possible price.

c. face greater demand for your jewelry.

d. face a weaker demand for your jewelry.

_____ 2. If suppliers expect the price of their product to fall in the future, then they will:

a. increase supply (supply curve shifts out) now.

b. decrease supply (supply curve shifts in) now.

c. increase supply in the future, but not now.

d. decrease supply in the future, but not now.

_____ 3. Consider the market for portable air conditioners, initially in equilibrium. When a heatwave strikes, the equilibrium price:

a. increases and equilibrium quantity decreases.

b. decreases, and the equilibrium quantity increases.

c. and quantity both increase.

d. and quantity both decrease.

_____ 4. Buyers can buy all they want to buy and sellers can sell all they want to sell at:

a. prices at and above the equilibrium price.

b. prices at and below the equilibrium price.

c. prices above and below the equilibrium price, but not at the equilibrium price.

d. the equilibrium price, but not at prices above or below the equilibrium price.

_____ 5. The law of supply and demand states that:

a. demand and supply curves shift out as time goes by.

b. the price of a goodwill rise in response to excess demand for that good.

c. when the supply curve for good shifts, the demand curve for that good shifts in response.

d. the equilibrium price of goodwill be rising more often than it will be falling.

_____ 6. If Doritos and Cheetos are substitutes, a rise in the price of Cheetos will cause:

a. the equilibrium quantity of Doritos to fall and the price of Doritos to rise.

b. the equilibrium quantity and price of Doritos to rise.

c. the equilibrium quantity and price of Doritos to fall.

d. the equilibrium quantity of Doritos to rise and the price of Doritos to fall.

_____ 7. New production technology is perfected that allows auto manufacturers to build an automobile using half the labor hours formerly needed. As a result:

a. the equilibrium quantity of automobiles increases and the price decreases.

b. the equilibrium quantity and price of automobiles increase.

c. the equilibrium quantity and price of automobiles decreases.

d. there is likely no change in the number of automobiles produced.

_____ 8. The U.S. government announces that it will raise the interest rate on college student loans beginning in January of next year. The immediate market impact is:

a. the demand curve for student loans shifts out.

b. the supply curve for student loans shifts out.

c. we anticipate that more student loans will be completed next year than this year.

d. all of the above are correct.

_____ 9. What curve shift produces a fall in price and increase in quantity exchanged?

a. An inward shift in the demand curve.

b. An inward shift in the supply curve.

c. An outward shift in the supply curve.

d. An outward shift in the demand curve.

_____ 10. We note that fewer motorcycles were sold this year than last and that the price is also lower. What event could have caused this outcome?

a. A technological change that improved the fuel efficiency of motorcycles.

b. A rise in the wages paid to motorcycle manufacturing workers.

c. A motorcycle craze due to the popularity of Sons of Anarchy.

d. Increasing concerns about health impacts from breathing motorcycle exhaust.

_____ 11. The price that results in quantity supplied equaling quantity demanded is the optimal (best) price because it:

a. maximizes the combined welfare of buyers and sellers.

b. maximizes the cost of the seller.

c. minimizes the expenditure of buyers.

d. all of the above are correct.

_____ 12. Consumer surplus is the:

a. quantity of good consumers get without paying anything.

b. amount a consumer pays minus the amount the consumer is willing to pay.

c. amount a consumer is willing to pay minus the amount the consumer pays.

d. value of a good to a consumer.

_____ 13. In a market, the marginal buyer is the one:

a. whose willingness to pay is higher than all other buyers and potential buyers.

b. whose willingness to pay is lower than all other buyers and potential buyers.

c. who is willing to buy exactly one unit of the good.

d. who would be the first to leave the market if the price were any higher.

_____ 14. If a consumer is willing and able to pay $20 for a particular good and if she actually pays $16 for the good, then her consumer surplus is:

a. $4.

b. $16.

c. $20.

d. $36.

_____ 15. Suppose there is an early freeze in California that reduces the size of the orange crop. What happens to consumer surplus in the market for oranges?

a. Consumer surplus increases.

b. Consumer surplus decreases.

c. Consumer surplus is not affected by this change.

d. We would have to know whether the demand for oranges is elastic or inelastic.

_____ 16. Producer surplus is the area on a supply/demand graph:

a. under the supply curve.

b. between the supply and demand curves.

c. below the price line and above the supply curve.

d. under the demand curve and above the price line.

_____ 17. Economists typically measure economic efficiency using:

a. total producer and consumer surplus.

b. profits to firms.

c. the quantity supplied by sellers.

d. the price paid by buyers.

_____ 18. Which of the following statements is correct?

a. Efficiency and equality are both maximized when total surplus is maximized.

b. Efficiency deals with the size of the economic pie; equality with how fairly the pie is sliced.

c. Efficiency is more difficult to evaluate than equality.

d. Equality is judged on positive grounds; efficiency requires normative judgments.

_____ 19. The price elasticity of demand measures how much:

a. quantity demanded a response to changes in price.

b. quantity demanded a response to changes in income.

c. price responds to a change in demand.

d. Both a and c are correct

_____ 20. Goods with many close substitutes tend to have:

a. less elastic demands.

b. more elastic demands.

c. price elasticities of demand that are unit elastic.

d. income elasticities that are negative.

Short Answer Questions:

All of the following questions are based on the data shown here for coffee demand and supply at a fictional Columbus coffee shop called Go-bucks.

Price Quantity Quantity

per Cup Demanded Supplied

$1.60 1,700 1,220

$1.80 1,555 1,300

$2.00 1,400 1,400

$2.20 1,235 1,520

$2.40 1,060 1,660

$2.60 875 1,820

_____ 21. (6 points) Using the mid-point formula, calculate the price elasticity of demand as the price increases from $1.60 to $1.80.

_____ 22. (6 points) Repeat the calculation of the price elasticity of demand, this time for a price increase from $1.80 to $2.00.

_____ 23. (6 points) Repeat the calculation of the price elasticity of demand, this time for a price increase from $2.40 to $2.60.

24. (4 points) Over which price range is demand inelastic? Over which price range is demand elastic? Does this follow the trend noted in class?

_____________________________________________________________________________

_____ 25. (6 points) Turning to the supply side, calculate the price elasticity of supply as the price increases from $2.20 to $2.40.

26. (2 points) How would you describe the price elasticity of supply over this range?

_____________________________________________________________________________

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ECON-1010 Chapter Notes - Fall 2018 Chapter 4 - Complementary good, Equilibrium point, Allocative efficiency

ECON-1010 Full Course Notes

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