ADM 2703 Lecture Notes - Economic Equilibrium, Remittance

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25 Nov 2012

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Our understanding of elasticity will help us analyze the impact of sales taxes or subsidies on equilibrium price and quantity. The simplest sales tax is a fixed tax per unit sold, regardless of the price or quantity of the units sold. Since the sellers impose the tax on each unit sold, the sellers add the amount of the tax to the price of each unit sold. This means that the supply function shifts up by the amount of the tax. Initial equilibrium => 84 0. 03q = 26 + 0. 02q. => qo = 1160 and po = . 20. => supply: p = 12 + 26 + 0. 02q. After tax equilibrium => 84 0. 03q = 38 + 0. 02q. => q1 = 920 and p1 = . 40. Total tax revenue = tax/unit * q1 = * 1100 = . Note: the equilibrium price after the tax increased by . 20 (. 40 - . 20) not .

Related Questions

Suppose that the supply curve is given by QS = a*P + b*w + c*i, where P denotes the price per unit of a supplied good, w the nominal wage per hour and i the interest rate on debt. The demand curve is given by QD = d*P + e*I + f*T, where I denotes annual income per year in thousands of dollars and T is a constant amount of income taxes.
a. Calculate the equilibrium price and quantity for the following estimated parameters, a = 1, b = -2, c = -1/2, d = -2, e = 2, f = -1, and average levels of wages, interest rates, income and taxes, w = 5, i = 0.1, I = 40, T = 6.

b. By how much do the equilibrium price and quantity change, when income taxes increase by 50 percent ? Explain the involved adjustment. Draw a graph to illustrate your answer.

c. Suppose that taxes are proportional to the level of income. Calculate the equilibrium price and quantity for a tax rate of 17.5 percent of income and a tax rate of 35 percent of income. Why a government might have incentives to impose the higher tax rate ?

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Considering the demand side of a market for a good, it is reasonable to expect that:
i. demand curves for a given good are identical between consumers
ii. demand curves for a given good differ between consumers
iii. an individual has identical demand curves for different goods
iv. an individual has different demand curves for different goods

iii

i and iii

ii and iv

Suppose the market demand curve for a good is represented by the linear equation Q = 60 - 0.75P. If the market price were to increase from P = $20 to P = $40, then holding all other factors constant:

the quantity demanded would decrease by 10 units and total expenditures on the good would decrease by $400

the quantity demanded would decrease by 15 units and total expenditures on the good would increase by $300

the quantity demanded would decrease by 30 units and total expenditures on the good would increase by $1200

the quantity demanded would increase by 20 units and total expenditures on the good would decrease by $800

the quantity demanded would increase by 10 units and total expenditures on the good would increase by $100

the quantity demanded would increase by 25 units and total expenditures on the good would increase by $1000

A perfectly competitive firms supply curve for a good identifies the:
i. minimum quantity supplied at each price, holding all other factors constant
ii. firms minimum willingness to accept for each incremental unit of the good (e.g., the first unit, second unit, etc.), holding all other factors constant
iii. maximum quantity supplied at each price, holding all other factors constant
iv. firms maximum willingness to accept for each incremental unit of the good (e.g., the first unit, second unit, etc.), holding all other factors constant

Considering the supply side of a market for a good, if a firms supply curve were vertical, then:

the law of supply holds, and quantity supplied is completely insensitive to changes in price

the law of supply holds, and quantity supplied is highly sensitive to changes in price

the law of supply fails to hold, and quantity supplied is completely insensitive to changes in price

the law of supply fails to hold, and quantity supplied is highly sensitive to changes in price

none of the above

The determinants of supply are:
i. factors other than price that will affect the quantity of a good or service a firm is willing and able to purchase
ii. factors that affect a producers maximum willingness-to-accept to produce various quantities of a good
iii. factors that affect a producers minimum willingness-to-accept to produce various quantities of a good

iii

i and ii

i and iii

The market supply curve for a good is derived by:
i. horizontally summing the supply curves of the individual firms in the market
ii. vertically summing the supply curves of the individual firms in the market
iii. summing the quantity supplied by each firm at a given price and then repeating this over the range of prices

iii

i and ii

i and iii

If the level of technology used in the production of a good improves, and assuming the quality of the good does not change, then:
i. more output may be obtained with a given amount of inputs compared to before the technological improvement
ii. a given amount of output may be obtained with fewer inputs compared to before the technological improvement
iii. the firm will increase its use of other inputs, such as the number of workers it employs
iv. market demand for the good will increase

Considering the market for gasoline, which of the following would result in an increase in market supply?
i. a decrease in the price of gasoline
ii. an improvement in oil extraction and refining technologies
iii. an increase in the wage rates paid to gasoline refinery workers
iv. a decrease in the price of crude oil, a key input used to produce gasoline
v. the imposition of a federal gasoline tax aimed a decreasing the emission of greenhouse gases

Suppose a market has two identical sellers. If each sellers supply function is given by P = 20 + Q, then the market supply function is:

From the market framework discussed in class and the readings, it may be concluded that in order for a good to be exchanged between a seller and a buyer, it must be that:

buyer maximum willingness-to-pay is greater than seller minimum willingness-to-accept

buyer maximum willingness-to-pay is greater than or equal to seller minimum willingness-to-accept

buyer minimum willingness-to-pay is greater than or equal to seller maximum willingness-to-accept

buyer minimum willingness-to-pay is greater than seller maximum willingness-to-accept

If the market demand function is given by P = 80 - 0.3Q and the market supply is given by P = 20 + 0.1Q, then the equilibrium price and quantity are:

Of concern are the affects of sustained summer droughts on the domestic supply of wheat. Noting that wheat is a primary ingredient in the production of bread and that potatoes are a substitute for bread, if the supply of wheat declines then it is reasonable to expect:

the price of wheat to fall, the supply of bread to increase, and the demand for potatoes to increase

the price of wheat to fall, the supply of bread to increase, and the demand for potatoes to decrease

the price of wheat to rise, the supply of bread to decrease, and the demand for potatoes to decrease

the price of wheat to rise, the supply of bread to decrease, and the demand for potatoes to increase

the price of wheat to rise, the supply of bread to increase, and the demand for potatoes to increase

the price of wheat to rise, the supply of bread to increase, and the demand for potatoes to decrease

Suppose a perfectly competitive market is initially in equilibrium. If market demand and supply decrease simultaneously, then equilibrium:

price will rise, but the equilibrium quantity may either rise, fall, or remain unchanged

quantity will rise, but the equilibrium price may either rise, fall, or remain unchanged

price will fall, but the equilibrium quantity may either rise, fall, or remain unchanged

quantity will fall, but the equilibrium price may either rise, fall, or remain unchanged

Considering the demand side of a market for a good, the consumer surplus derived by an individual:
i. is the difference between the maximum amount the consumer is willing to pay on each unit and the minimum prices that producers are willing to accept
ii. is the difference between the minimum amount the consumer is willing to pay on each unit and the price he/she
actually pays
iii. is the difference between the maximum amount the consumer is willing to pay on each unit and the price he/she actually pays
iv. will decrease if price increases

Suppose the market demand for a good is described by the equation P = 120 - 2Q. If a change in market supply results in price decreasing from P0 = $80 to P1 = $70, then the resulting change in consumer surplus is:

Question 1 If it was impossible to have a comparative advantage, there would be no gains from trade. True False 4 points

Question 2 If the price of Good X is $10 and price of Good Y is $15, the slope of the budget constraint is 1.5. True False 4 points

Question 3 If the demand and supply curves have equal slopes in absolute value, the burden of a commodity tax will be split equally regardless of on whom the tax is placed. True False 4 points

Question 4 Suppose that supply is fixed at 100 units and demand is Q = 500 P. A price ceiling of $100 creates a shortage of 400 units. True False 4 points

Question 5 Housing shortages caused by rent controls are larger in the long run because the supply of housing is more elastic in the long run. True False 4 points

Question 6 Firms should exit the industry if average costs are greater than marginal costs. True False 4 points

Question 7 If a 3.67 percent increase in price causes a 1.97 percent decrease in quantity demanded, then total revenue must fall following an increase in price. True False 4 points

Question 8 Which of the following choices best illustrates the concept of Adam Smith's invisible hand ? A Vietnamese farmer grows rice; an exporter ships it to the United States, and a grocer in New York sells it to a customer. A fishery's stock of fish becomes depleted due to overfishing as boats from around the world converge. A government regulates a firm to clean up the pollutants it has released as part of its production process. An apartment building is built, which provides much needed housing, on the site of the only playground for children in that town. 4 points

Question 9 Figure: Labor Supply and Welfare Refer to the figure. The budget constraint is: ABC. BD. ABDC. ABD. 4 points Question 10 The price of coffee has increased, yet evidence suggests the demand for coffee has been stable. A possible explanation is that: there has been no change in the supply of coffee. there has been increased use of subsidies in coffee production. wages of workers in coffee production might have decreased. wages of workers in coffee production might have increased. 4 points Question 11 Which of the following statements is TRUE regarding profit maximization in competitive markets? I. When all firms pursue profits, none of them achieve profits. II. When all firms pursue profits, only the most innovative will achieve profits. III. Production is divided in such a way that total costs of production are minimized. I only II only I and III only II and III only 4 points Question 12 Suppose France can produce four phones or three computers with one unit of labor, and Sweden can produce one phone or two computers with one unit of labor. If France can trade only with Sweden, then the theory of comparative advantage suggests that: France should specialize in producing phones and import computers from Sweden. France should specialize in producing computers and import phones from Sweden. France should produce both phones and computers, and import nothing from Sweden. France should import both phones and computers from Sweden. 4 points Question 13 Potato chips and popcorn are substitutes. A subsidy for potato chips will ______the demand for popcorn and the quantity of popcorn sold will ______. (Table: Barrels of Oil) Refer to the table. What is the total amount of producer surplus (per barrel of oil) earned by all four producers if the market price per barrel of oil is $51? Table: Barrels of Oil Minimum willingness to sell Country a single barrel of oil Country A $32.00 Country B 16.00 Country C 17.25 Country D 56.99 increase; increase increase; decrease decrease; decrease decrease; increase 4 points Question 14 In the market for Good X a necessity good without any good substitutes the workers and capital in the industry can easily find work producing other goods. The burden of the tax is likely to fall: more heavily on buyers, given that demand is more inelastic than supply. evenly between buyers and sellers. more heavily on sellers, given that supply is more inelastic than demand. more heavily on buyers, given that demand is more elastic than supply. 4 points Question 15 A U.S. manufacturer arranges to purchase parts from a German supplier for 500,000 euros in six months. The U.S. manufacturer is concerned that the dollar will depreciate against the euro, meaning the dollar cost of the 500,000 euros will rise. What should the U.S. manufacturer do? lobby the Fed to lower interest rates on six-month T-bills buy a futures contract that fixes the dollar cost of 500,000 euros in six months buy an exchange rate contract that pegs the interest rate to the discount rate on interbank loans sell a naked option to cover the output spread 4 points Question 16 Which of the following scenarios would cause a speculator to buy low and sell high ? Farmers expect to have a bumper harvest of corn next year. Imports of corn begin to flood the country. The government is expected to pass legislation making it mandatory for all vehicles to use corn-based fuels within one year. The government is expected to subsidize corn production for farmers. 4 points Question 17 In a market with a price ceiling which of the following is TRUE? Buyers and sellers experience unexploited gains from trade. Resources are allocated to their most efficient uses. The supply of goods is sold by the sellers with the lowest costs. The supply of goods is bought by the buyers with the highest willingness to pay. 4 points Question 18 Consider the following statements: I. Relative to a no-trade situation, if the United States exported wheat, the U.S. domestic wheat price would rise and domestic production of wheat would expand. II. Relative to a no-trade situation, international trade causes prices of all goods to rise. I is true; II is false. I is false; II is true. Both I and II are true. Both I and II are false. 4 points Question 19 As the price of a good fluctuates, a profit-maximizing firm will expand or contract production along its: average cost curve. average product curve. marginal cost curve. marginal product curve. 4 points Question 20 An increase in demand and a decrease in supply occur in a market. What happens to the equilibrium price and quantity? The equilibrium price decreases; the change in the equilibrium quantity is ambiguous. The equilibrium price decreases; the equilibrium quantity increases. The equilibrium price increases; the change in the equilibrium quantity is ambiguous. The equilibrium price increases; the equilibrium quantity decreases.

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ADM 2703 Lecture Notes - Economic Equilibrium, Remittance

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