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ECON 101 Study Guide - Midterm Guide: Deadweight Loss, Economic Equilibrium, Marginal Cost

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turquoisegnu128
1 Oct 2018
School
U of M
Department
Economics
Course
ECON 101
Professor
All

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ECON 101 Full Course Notes
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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. Multiple choice: in 2011, the equilibrium price per bag of potatoes was and the equilibrium quantity sold was 100 bags. In 2012, the equilibrium price of a bag fell to and the equilibrium quantity was still 100 bags. Page 2 of 18: in the perfectly competitive market for ballet lessons in ann arbor, there are three buyers and three sellers. Their marginal bene t and marginal cost schedules are below. Page 3 of 18: the graph below shows the marginal cost of abatement (mca) and marginal bene t of abatement (mba) curves for the emissions of carbon dioxide (pollution). In terms of dollars per ton, what tax on the polluters would result in the e cient quantity of pollution: per ton, per ton, per ton, per ton, per ton.

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Related Questions

The primary difference between a change in supply and a change in the quantity supplied is:
Choose one answer.
a. a change in quantity supplied is a shift in the supply curve, and a change in supply is a movement along the supply curve.
b. both a change in quantity supplied and a change in supply are movements along the supply curve, only in different directions.
c. a change in quantity supplied is a movement along the supply curve, and a change in supply is a shift of the supply curve.
d. a change in supply is a movement to the left along the supply curve and a change in quantity supplied is a movement to the right along the supply curve.

Question 2
What is the difference between a shortage and scarcity?
Choose one answer.
a. Scarcity will always exist because choices must be made, but a shortage will only exist if the price is kept below the equilibrium level.
b. Scarcity is a result of two or more alternative uses and will always exist, and quantities of supply and demand adjusting to flexible prices will create shortages.
c. A surplus will exist when a good is scarce; a shortage merely implies that there isn't as much of something as people would like, which is nearly always the case.
d. There is no distinction between the two. They are the same thing.

Question 3
A decrease in supply means:
Choose one answer.
a. a shift to the left of the entire supply curve.
b. moving downward (to the left) along the supply curve with lower prices.
c. less will be demanded at every price.
d. more will be supplied at every price.

Question 4
A decrease in demand, with no change in supply, will lead to ________ in equilibrium quantity and ________ in equilibrium price.
Choose one answer.
a. an increase; an increase
b. an increase; a decrease
c. a decrease; an increase
d. a decrease; a decrease

Question 5
After graduation from college you will receive a substantial increase in your income from a new job. If you decide that you will purchase more T-bone steak and less hamburger, then for you hamburger would be considered a( n ):
Choose one answer.
a. normal good.
b. substitute good.
c. complementary good.
d. inferior good.

Question 6
There is equilibrium in the market when:
Choose one answer.
a. there is no shortage.
b. there is no surplus.
c. price is established where the supply curve and the demand curve intersect.
d. all of the above are true.

Question 7
Which would not cause the supply curve to shift?
Choose one answer.
a. a change in technology
b. a change in factor costs
c. a change in the price of the good
d. a change in the prices of related goods

Question 8
Given that meat and potatoes are complementary goods, if the price of meat decreases substantially, there would be:
Choose one answer.
a. an increase in the demand for potatoes.
b. an increase in the quantity of potatoes demanded.
c. a decrease in the demand for potatoes.
d. no change in the demand for potatoes.

Question 9
Given that milk and cookies are complements, suppose the price of flour (an ingredient in cookies) rises. What happens in the market for milk?
Choose one answer.
a. The equilibrium price and quantity rise.
b. The equilibrium price rises and the equilibrium quantity falls.
c. The equilibrium price and quantity fall.
d. The equilibrium price falls and the equilibrium quantity rises.

Question 10



A temporary price of $2 in this market would result in:
Choose one answer.
a. a surplus of 8,000 bushels.
b. a shortage of 8,000 bushels.
c. a shortage of 10,000 bushels.
d. a surplus of 10,000 bushels.

Question 11
The price of oranges rises. What happens in the market for apples, which are a substitute for oranges?
Choose one answer.
a. The equilibrium price falls, and the equilibrium quantity rises.
b. The equilibrium price rises, and the equilibrium quantity falls.
c. The equilibrium price and quantity rise.
d. The equilibrium price and quantity fall.

Question 12
A market surplus occurs if the:
Choose one answer.
a. price is below the equilibrium price.
b. price is equal to the equilibrium price.
c. equilibrium price is above the actual price.
d. equilibrium price is below the actual price.

1. Which of the following would shift a supply curve in a perfectly competitive market for a good?

A.

a change in the number of buyers
B.

a change in input prices
C.

a change in price of a consumption complement
D.

a change in the good's price

2. Which of the following would not occur in the short run if a binding price floor were raised in perfectly competitive market?

A.

an increase in total surplus
B.

a decrease in consumer surplus
C.

a decrease in the quantity actually traded
D.

an increase in gap between quantity demanded and quantity supplied

3. What is price discrimination?

A.

selling products that are similar to, but not exactly the same as a competitor's products
B.

selling the same product to different consumers at different prices
C.

selling a good at a price above marginal cost
D.

selling a good at a price above average variable cost

4. Assume that the wholesale skim milk market is perfectly competitive. Suppose demand is described by P=5.10-0.80Q and supply is described by P=1.90+0.20Q. If there are no price controls, what would be the equilibrium quantity? (Answers must be within 0.10 of the actual value to be counted as correct.)

__________________________________________________________________________

(1) If a demand curve shifts to the left, then:
a) price would go up and quantity would go down
b) price would go down and quantity would go up
c) a lower price and quantity would result
d) a higher price and quantity would result

(2) Demand and supply curves are drawn assuming ceterisparibus.This means that:
a) economists ignore all assumptions
b) economists don't watch for the fallacy of false cause
c) changes will be proportional
d) all other things besides price and quantity are unchanged

(3) If steak and potatoes are complements, when the price ofsteakgoes up, the demand curve for potatoes:
a) shifts to the right
b) shifts to the left
c) stays the same
d) shifts to the right and then moves back

(4) Given that chicken and beef are substitute goods, if thepriceof chicken decreases substantially, there would be:
a) an increase in the demand for beef
b) a decrease in the demand for beef
c) a decrease in the quantity for beef demanded
d) no change in the demand for beef

(5) Every day for the past two years you've had ham and cheese onawhole wheat bagel for lunch at Bungalow Bob's BagelBoutique.However, the price of whole wheat bagels has risen by 10cents sotoday you decide to have ham and cheese on rye bagel. Inthis case,whole wheat and rye bagels are best considered:

a) superior goods
b) normal goods
c) substitute goods
d) complementary goods

(6) For most goods, purchases tend to rise with increases inbuyers'incomes and to fall with decreases in buyers' incomes. Suchgoodsare known as:

a) inferior goods
b) direct goods
c) normal goods
d) luxury goods

(7) Economists know that a particular good can be classified asaninferior good if a(n)______ increase in buyers' incomecausesa(n)_____

a) increase; increase in demand
b) increase; increase in quantity demanded
c) increase; decrease in demand
d) decrease; decrease in demand

(8) An increase in the demand for medical services caused byanincrease in the number of people 65 is most likely attributabletowhich demand shifter?

a) income
b) consumer preferences
c) prices of other goods
d) demographic characteristics

(9) Which of the following would shift the demand curve fornewtextbooks to the right?

a) a decrease in the price of paper
b) a fall in the price of used textbooks
c) an increase in college enrollments
d) a fall in the price of new textbooks

(10) How a supply curve is sloped and located depends on:

a) technology
b) resources prices
c) the number of producers or sellers
d) all of the above

(11) A decrease in supply means:

a) a shift to the left of the entire supply curve
b) moving downward (to the left) along the supply curve withlowerprices
c) less will be demanded at every price
d) more will be supplied at every price