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ECON 2035 Lecture Notes - Lecture 5: Excess Supply, Economic Equilibrium, Demand Curve

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salmoncrow381
22 Apr 2016
School
LSU
Department
Economics
Course
ECON 2035
Professor
Starkey

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Document Summary

Theory of portfolio choice- this theory informs us how much of an asset people want to hold in the portfolio that they have. Demand curve- a line that demonstrates the relationship between the qd and the price when all other economic variables are held constant. Supply curve- a line that demonstrates the relationship between the qs and the price when all other economic variables are held constant. Market equilibrium- when the amount that people are willing to sell at equals the amount that people are willing to buy something for. The concept of a market equilibrium and equilibrium price or interest rates are extremely important because the market tends to head towards them. Excess supply- a situation in which the quantity of bonds supplied exceeds the quantity of bonds demanded. Higher expected interest rates in the future lower the expected return for long-term bonds, decrease the demand, and shift the curve left.

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Related Questions

Which of the following statements is true?

a) the speculative demand for money at possible interest rates gives the demand curve for money its upward slope.

b) there is an inverse relationship between the quantity of money demanded and interest rates

c) according to the quantity theory of money any change in the money supply will have no effect on the price level. 

d) all of the answers are correct. 

 

Question 1

  1. If economic profits are zero

    accounting profits is less than the cost of capital.

    accounting profit is just covering the cost of capital.

    the cost of capital is negative.

    the entrepreneur should go to his/her next best alternative.

3 points

Question 2

  1. Markets provide

    information.

    prices.

    incentives.

    all of these choices.

3 points

Question 3

  1. The entrepreneur is always searching for

    positive profit.

    normal profit.

    accounting profit.

    economic profit.

3 points

Question 4

  1. Social regulations can create

    a more competitive market place.

    network externalities.

    a lower HHI.

    barriers to entry.

3 points

Question 5

  1. According to economic theory, profits are maximized where

    total revenue equals total cost.

    marginal revenue equals marginal cost.

    price and average cost are equal.

    where marginal product and average cost are equal.

3 points

Question 6

  1. Brand names help

    create commodities.

    maintain market power.

    create competition.

    keep economic profits at zero.

3 points

Question 7

  1. Entry of new firms causes

    accounting profits to go to zero.

    market share to grown.

    economic profits to go to zero.

    total revenue to be maximized.

3 points

Question 8

  1. Fixed costs

    do not vary with output

    vary with output

    do not vary with price

    vary with price

3 points

Question 9

  1. Variable costs

    do not vary with price.

    do not vary with output.

    vary with price.

    vary with output.

3 points

Question 10

  1. Value maximization means

    that managers make decision so as to increase the long-run market value of the financial claims on the firm.

    that a firm should make products that have the highest price.

    that managers make decision so as to increase the short-run market value of the financial claims on the firm.

    all of these choices.

3 points

Question 11

  1. A manager can determine if her product is viewed as a normal good or an inferior good by considering

    price elasticity.

    cross elasticity.

    income elasticity.

    advertising elasticity.

3 points

Question 12

  1. If demand is perfectly elastic,

    the smallest increase in price will cause quantity demanded to fall to zero.

    the smallest increase in price will cause demand to fall to zero.

    the smallest increase in price will cause quantity demanded to fall.

    the smallest increase in price will cause demand to fall.

3 points

Question 13

  1. If demand is perfectly elastic, then

    demand and price are inversely related.

    quantity demanded and price are inversely related.

    the demand curve is a vertical line.

    the demand curve is a horizontal line.

3 points

Question 14

  1. If price elasticity is 3.25 then

    for every one percent change in price, there will be a 3.25 percent change in quantity demanded.

    for every one percent change in price, there will be a 3.25 percent change in demand.

    for every one percent change in price, there will be a 32.5 percent change in quantity demanded.

    for every one percent change in price, there will be a .0325 percent change in quantity demanded.

3 points

Question 15

  1. If price elasticity is 3.25, then demand is

    inelastic.

    elastic.

    unitary.

    negative.

1 an imperfect market, individual firms

A.are always able to set the price of their product.
B.are able to influence the price of their product.
C.have no influence over the price of their product.

D.take the market price as given.

1 Which of the following is NOT characteristic of a market economy?

Significant government intervention
Little or no government intervention
Buyers and sellers motivated by self-interest
Prices determined by demand and supply

2 In a competitive market, the price of the product is

independently set by each competing seller.
set by the market leader and then copied by other sellers.
jointly set after a meeting of all sellers in the market.
set by market supply and demand.

3 Which of the following firms participates in a competitive market?

A new car manufacturer, such as Ford, Honda, Toyota, or GMC
A software producer, such as Microsoft
A corn farmer
A local electric utility company

4 In an imperfect market, individual firms

are always able to set the price of their product.
are able to influence the price of their product.
have no influence over the price of their product.
take the market price as given.

5 Which of the following firms operates as a monopoly?

A car manufacturer
A local water utility
A corn farmer
A fish vendor at a neighborhood market

6 According to the law of demand, what is the relationship between price and quantity demanded?

Direct
No relationship
Inverse

7 Refer to the following graph. The demand curve slopes downward because
Click to view graphic. (Links to an external site.)

prices and quantity demanded move in opposite directions.
prices and quantity demanded move in the same direction.
prices and quantity demanded have no relationship.
prices and quantity demanded remain unchanged.

8 A change in which of the following will cause a change in the quantity demanded of coffee?

Consumer income
The price of green tea, a substitute for coffee
The number of coffee consumers
The price of coffee

9 Suppose that burgers and fries are complements in consumption. If the price of fries increases

overall demand for burgers will increase.
overall demand for burgers will decrease.
quantity demanded for burgers will increase.
quantity demanded for burgers will decrease.

10 Suppose that Coca Cola and Pepsi are substitutes in consumption. If the price of Coca Cola decreases, then

both the equilibrium price and the quantity of Pepsi demanded will decrease.
both the equilibrium price and the quantity of Pepsi demanded will increase.
the equilibrium price of Pepsi will increase and the quantity demanded of Pepsi will decrease.
the equilibrium price of Pepsi will decrease and the quantity demanded of Pepsi will increase.

11 According to the law of supply, what is the relationship between price and quantity supplied?

Direct
No relationship
Inverse
It depends on the change in price

12 Refer to the graph below. The supply curve is _______________ driven by the law of supply.
Click to view graphic. (Links to an external site.)

Downward sloping
Upward sloping
Perfectly vertical
Perfectly horizontal

13 A change in which of the following will cause a change in the quantity supplied of coffee?

The technology or the production process of making coffee
Anticipation of a change in the price of coffee
The wages of coffee bean pickers
The price of coffee

14 Which of the following will cause a rightward shift in the supply curve for tobacco?

A fall in the number of tobacco farmers in the market
An increase in taxes on tobacco
Removal of government subsidies to tobacco farmers
An improvement in the technology used in the production of tobacco

15 Flour is a factor of production of cupcakes. How will an increase in the price of flour affect the market for cupcakes?

Overall supply will increase
Overall supply will decrease
Quantity supplied will increase
Quantity supplied will decrease

16 Refer to the following image. When a market is in equilibrium, which of the following is true?
Click to view graphic. (Links to an external site.)

Quantity supplied exceeds quantity demanded
Quantity supplied is less than quantity demanded
Quantity supplied is equal to quantity demanded
There is no relationship between quantity supplied and quantity demanded

17 Refer to the following figure. At a price of $15, this market is experiencing a(n)
Click to view graphic. (Links to an external site.)

equilibrium.
shortage.
surplus.
none of the above are true.

18 Refer to the following figure. At a price of $5, this market is experiencing
Click to view graphic. (Links to an external site.)

equilibrium.
a shortage.
a surplus.
None of the above are true.

19 Suppose pasta salad is a normal good. If the price of pasta (a major ingredient in pasta salad) increases and income also increases, the

equilibrium quantity and equilibrium price of pasta salad will increase.
equilibrium quantity of pasta salad will decrease and the equilibrium price of pasta salad may either increase or decrease.
equilibrium quantity of pasta salad may either increase or decrease and the equilibrium price of pasta salad will increase.
equilibrium quantity and equilibrium price of pasta salad will both decrease.

20. What must happen to the market price in order for a shortage to be eliminated?

Price must fall.
Price must rise.
Price must stay the same.
Price may rise or fall depending on the size of the shortage.