ECON1131 Study Guide - Final Guide: Normal-Form Game, Imperfect Competition, Sodium Hydride

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20 Sep 2017

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Demand schedule: table of how much goods and services people will buy at different prices. Demand curve: graphical representation of how much customers will buy at certain prices. Law of demand: as the price of a good increases demand will also increase. Time series: same person observed over time. Cross sectional: different people observed at the same time. Demand for normal goods increases with income. Input: good used to produce another good. When qd = qs or every buyer finds a seller and vice versa. Wtp: maximum amount a consumer is wtp for a good or service. How much one variable will change based on changes in the other variable, elastic if > 1, 0 is perfectly inelastic, unit elastic demand = 1 (q2-q1)/(q1+q2)/2/(p2-p1)(p1+p2)/2. Relationship between quantity demanded and price is negative. Price elasticity of demand is abs value of the ratio of change along the curve. Total revenue: value of all goods sold = pq.

Related Questions

DEMAND and SUPPLY FUNDAMENTALS: Shifts in Demand or Supply

Variables typically included in a multivariate demand function (other than the price and quantity of the item the demand function represents) are consumer tastes and preferences, the number of buyers, spendable (disposable) income, prices of substitute goods, prices of complementary goods, advertising expenditures, weather, and expectations. Recalling that the price of the item being considered is placed on the vertical axis, and the quantity on the horizontal axis, the other variables are termed demand shifters. Please answer the following questions about the affect changes in other variables might have on the demand for the item. These changes will either cause demand to increase(shift right) or decrease(shift left). Use either word as applicable, for the short answer.

If the price of a good increases because the demand for it increases, What would you expect the demand for its complement to do?

If the demand for coffee beans increases, then what is likely to happen to the demand for land on which to grow coffee?

If advertising expenditures for the good being considered are decreased, then demand for the good being considered will likely:

Lattes are a relatively expensive coffee drink. However, being a normal good, as consumersâ disposable income increases, the demand for Lattes should:

5. As the supply of tablet computers and e-readers increases relative to the demand for them, what change in demand for printed textbooks (having digital e-book versions) would you expect?

Variables typically included in a multivariate supply function (other than the price and quantity of the item the supply function represents) are prices of other goods that use similar input resources for production, expectations, the number of suppliers, techniques of production, taxes and subsidies, and prices of input resources, weather. Please answer the following questions about the affect changes in other variables might have on thesupplyof the item. These changes will either cause supply to increase(shift right) or decrease(shift left). Use either word as applicable, for the short answer.

If there is an increase in the number of producers of the item being considered, then the supply of it is likely to:

A tariff is a form of trade restriction (that behaves much like a tax). Suppose the United States removes a high tariff on imported broccoli that had been in effect for a long time. How should this affect the supply of imported broccoli?

A decrease in a government-provided subsidy of the item being considered is likely to ___________its supply.

If the price of an input resource decreases (and there are no cheaper substitutes for the resource) then producers of the item are likely to _____________ its supply?

Suppose broccoli growers have successfully lobbied Congress for a crop subsidy. Once the subsidy becomes available, the domestic broccoli supply is likely to:

THE PARTS IN BOLD ARE MARKED AS THE PARTS NEEDED HELP. ATTACHED IS THE ENTIRE ASSIGNMENT FOR ONLY PURPOSE THAT ALL INFORMATION IS INCLUDED. IF YOU COULD PLEASE ONLY HELP WITH PART 15 AND 17. PE=? QE=? AND PART 17 SITUATIONS OCCURING SIMULTANEOUSLY! THANK YOU!

Consider the market for new, single-family homes in New Orleans. The general demand function for new housing in New Orleans is estimated to be

Qd =15-2P+0.05M+0.10R

where Qd is the monthly quantity demanded, P is the price per square foot, M is average monthly income in New Orleans, and R is the average monthly rent for a three-bedroom apartment in New Orleans. Qd is measured in units of 1,000 square feet per month.

New housing in New Orleans is a(n) __________________ (normal, inferior) good. How can you tell from the general demand function?

New housing and three-bedroom apartments are _________________ (substitutes, comple- ments) in New Orleans. How can you tell from the general demand function?

If average monthly income is $1,500 and the monthly rental rate for three-bedroom apart- ments is $700, then the demand function for new housing in New Orleans is

Qd = _____________________________________.

Graph the demand curve for new housing in New Orleans on the axes provided below. Label

the demand curve D0.

What happens to demand when the following changes occur?

a. b. c. d. e.

The price of the commodity rises.
Income decreases and the commodity is normal. Income decreases and the commodity is inferior.

The price of a complement good increases. The price of a substitute good decreases.

The general supply function for new housing in New Orleans is estimated to be Qs =96+2P-10PL -4PK

where P is the price per square foot of new housing in New Orleans, PL is the average hourly wage rate for construction workers, and PK is the price of capital (as measured by the average rate of interest paid on loans to home builders). Qs is measured in units of 1,000 square feet per month.

Does it make sense for PL and PK to have negative coefficients in the general supply func- tion? Explain why or why not.

If the average hourly wage rate for construction workers is $10 per hour and the average rate of interest on loans to builders is 9 percent (i.e., PK = 9), then the supply function for new housing is

Qs = ______________________.

Graph the supply curve for new housing in the graph below. Label supply S0.

Other things remaining the same, what would happen to the supply of a particular commodity if the following changes occur?

The price of the commodity increases.

Government regulators outlaw the use of a technology that enables the good to be

produced at a significantly lower cost.

The prices of inputs used to produce the commodity decrease.

The price of a commodity that is a substitute in production increases.

Managers expect the price of the good to fall in the near future.

As the cost of capital rises, firms in the industry stop purchasing plant and equip-

ment, which allows depreciation to diminish the productive capacity in the indus- try.

Solve mathematically for equilibrium price and quantity. Show your work:

PE = $__________ per square foot.
QE = __________ square feet per month (in 1,000s).

Do your supply and demand curves intersect at PE and QE found in question 8 above? Should they?

In equilibrium found in question 8, compute total consumer, producer, and social surpluses:

CS = $____________ PS = $____________ SS = $____________

13. Suppose New Orleans suffers a serious recession that causes average monthly income to fall from $1,500 to $1,100 per month. If other things remain the same, the demand for new hous- ing in New Orleans is now:

Qd = _______________________. Plot this new demand curve in the figure below. Label it D'.

Suppose that because of the recession in New Orleans, the wage rate for construction workers falls to $8 per hour. If other things remain the same, the supply of new housing in New Orle- ans is now:

Qs = _______________________.
Plot this new supply curve in the figure. Label the new supply curve S'.

After income falls to $1,100 and wages fall to $8, new equilibrium price and quantity are PE = $__________ per square foot
QE = __________ square feet per month (in 1,000s)

Determine the effect upon equilibrium price and quantity sold if the following events occur in a particular market:

The price of a substitute good (in consumption) decreases.

Consumersâ income increases and the good is inferior.

Government regulators decide to outlaw a cost-reducing technological

process in order to protect the environment.

The price of a complement good (in production) increases.

The price of inputs used to produce the good decrease.

Consumers expect that the price of the good will fall in the near future.

It is widely publicized that consumption of the good is helpful in prevent-

ing cancer.

The price of a substitute good (in production) decreases.

17. Suppose that a pair of events from problem 15 occur simultaneously. For each of the pairs of events indicated below, perform a qualitative analysis to predict the direction of change in either the equilibrium price or the equilibrium quantity. Explain why the change in one of these two variables is indeterminate.

Both a and h in problem 15 occur simultaneously.

Both b and e in problem 15 occur simultaneously.

Both d and g in problem 15 occur simultaneously.

Both f and c in problem 15 occur simultaneously.

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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ECON1131 Study Guide - Final Guide: Normal-Form Game, Imperfect Competition, Sodium Hydride

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