ECON101 Lecture Notes - Lecture 80: Budget Constraint, Carbon Footprint, Demand Curve
ECON101 Full Course Notes
Document Summary
Get access
Related Documents
Related Questions
1) Suppose your grandmother gave you $25 for your birthday and you decided to spend all of it on candy bars and bags of popcorn. The price of candy bars is $1.25 and price of a bag of peanuts is $3.75.
a) Construct a table showing the alternative combinations of the two products that are available.
b) Plot the data in your table as a budget line in a graph. What is the slope of the budget line? What is the opportunity cost of one more candy bar? Of one bag of peanuts?
c) How, in general, would you decide which of the available combinations of candy bars and bags of peanuts to buy?
2) With current technology, suppose a firm is producing 750 screwdrivers daily. Also assume that the least-cost combination of resources in producing those screwdrivers is 15 units of labor, 20 units of land, 4 units of capital, and 3 unit of entrepreneurial ability, selling at prices of $50, $45, $75, and $50, respectively. If the firm can sell these 750 screwdrivers at $2.50 per unit,
a) what is its total revenue?
b) what is its total cost?
c) what is its profit or loss?
d) will it continue to produce screwdrivers?
e) If this firmâs situation is typical for the other makers of screwdrivers, will resources flow toward or away from this product?
3) How will each of the following changes in demand and/or supply affect equilibrium price and equilibrium quantity in a competitive market; that is, do equilibirium price and quantity rise, fall , or are the answers indeterminate because they depend on the magnitudes of the shifts?
a)Supply decreases and demand is constant. Change in eqilibrium price chnage in eqilibrium quantity
b)Demand decreases and supply is constant.
c)Supply increases and demand is constant.
d)Demand increases and supply increases.
e)Demand decreases and supply decreases.
4)Zeke likes to go to music concerts. The number of times per year that he attends concerts depends on both the price of the concerts as well as Zekeâs income and the cost of other types of entertainmentâin particular, how much it costs to go see a movie instead of attending concerts. The three demand schedules in the $60,000 per year and movies cost $10 each. In scenario D2, Zeke's income is also $60,000 per year, but the price of seeing a movie rises to $12. And in scenario D3, Zeke's income goes up to $80,000 per year, while movies cost $12.
a)Using the data under D1 and D2, calculate the cross-elasticity of Zeke's demand for concerts at all three prices. (To do this, apply the midpoints approach to the cross-elasticity of demand.) Is the cross-elasticity the same at all three prices? Are movies and concerts substitute goods, complementary goods, or independent goods?
b)Using the data under D2 and D3, calculate the income elasticity of Zeke's demand for concerts at all three prices. (To do this, apply the midpoints approach to the income elasticity of demand.) Is the income elasticity the same at all three prices? Are concerts an inferior good?
| PRICE | D1 | D2 | D3 |
| 50 | 10 | 5 | 12 |
| 40 | 15 | 10 | 25 |
| 30 | 25 | 15 | 40 |
Income 60,000 60,000 80,000
Cost of revenue 10 12 12
5) On the basis of the three individual demand schedules below, and assuming these three people are the only ones in the society, determine (a) the market (a) the market demand schedule on the assumption that the good is a private good and (b) the collective demand schedule on the assumption that the good is a public good.
| P | Qd(D1) | Qd(D2) | Qd(d3) |
| 20 | 0 | 0 | 1 |
| 19 | 0 | 1 | 2 |
| 17 | 0 | 2 | 3 |
| 16 | 0 | 3 | 4 |
| 15 | 1 | 4 | 5 |
| 14 | 2 | 5 | 6 |
| 13 | 3 | 6 | 7 |
| 12 | 4 | 7 | 8 |
| 11 | 5 | 8 | 9 |
| 10 | 6 | 9 | 10 |
1.Ceteris paribus, if the U.S. federal government reduces its budget deficit which of the following will be observed?
Answer
| a. | The aggregate demand curve will shift to the right. | |
| b. | The economy will always approach potential GDP. | |
| c. | The marginal propensity to consume will increase. | |
| d. | The average price level will increase. | |
| e. | The aggregate demand curve will shift to the left. |
2. If the government wants to close a GDP gap, it can:
Answer
| a. | lower government spending on social security. | |
| b. | adopt contractionary fiscal policies to control inflation. | |
| c. | increase its budget deficit. | |
| d. | repay its borrowings. | |
| e. | raise both direct and indirect tax rates. |
3. Suppose the short-run equilibrium level of income exceeds the full employment level of income and there is high inflation. Hence, the government decides to implement a fiscal policy that will act to reduce national output and price level. This can be accomplished by:
Answer
| a. | lowering average tax rates such that aggregate supply is increased. | |
| b. | increasing government spending such that aggregate expenditures are increased. | |
| c. | increasing transfer payments such that aggregate expenditures decline. | |
| d. | raising taxes and government spending by the same amount such that aggregate supply is decreased and aggregate demand is increased. | |
| e. | decreasing government spending such that aggregate demand is reduced. |
4. A drop in investment spending caused by increased government budget deficits is referred to as:
Answer
| a. | the multiplier effect. | |
| b. | crowding out. | |
| c. | an expansionary gap. | |
| d. | the paradox of thrift. | |
| e. | the Ricardian equivalence. |
5. Discretionary fiscal policy is best defined as:
Answer
| a. | the deliberate manipulation of the money supply to expand the economy. | |
| b. | the deliberate change in tax laws and government spending to change equilibrium income. | |
| c. | the policy action taken by the Congress to reduce the federal budget deficit. | |
| d. | the arbitrary fluctuation in tax laws and budget requirements. | |
| e. | the automatic change in certain fiscal instruments when real GDP changes. |
6. Which of the following can be considered as an automatic stabilizer in the economy?
Answer
| a. | Money supply | |
| b. | Disposable income | |
| c. | Real exchange rate | |
| d. | Real interest rate | |
| e. | Unemployment insurance |
7. Which of the following is true about automatic stabilizers?
Answer
| a. | When income rises, automatic stabilizers increase/boost spending. | |
| b. | Automatic stabilizers are a part of discretionary fiscal policy. | |
| c. | An automatic stabilizer is any program that responds to fluctuations in the business cycle in a way that moderates the effects of those fluctuations. | |
| d. | Any kind of trade policy adopted by the government will be considered as an automatic stabilizer. | |
| e. | The interest rate is an example of an automatic stabilizer. |
8. Increased budget deficits
Answer
| a. | can cause interest rates to increase and hence decrease net exports | |
| b. | have no effect on net exports | |
| c. | can cause interest rates to decrease and hence increase net exports | |
| d. | never impose additional interest costs on the government |
9. The Ricadian Equivalence implies that when financing additional government expenditures
Answer
| a. | there is no difference between increasing current taxes or borrowing now and increasing taxes in the future because consumption will decrease either way. | |
| b. | there is no difference between increasing current taxes or borrowing now and increasing taxes in the future because consumption will increase either way. | |
| c. | increasing borrowing is the best option | |
| d. | increasing current taxes is the best option |
10. Assuming no effects on aggregate supply, if the government increases government spending and decreases taxes in an attempt to prevent a possible recession, aggregate demand will shift to the ____, the price level will either remain constant or ____, and the level of real GDP will ____.
Answer
| a. | right; decrease; increase | |
| b. | right; decrease; decrease | |
| c. | left; decrease; decrease | |
| d. | left; increase; increase | |
| e. | right; increase; increase |
11. For a hypothetical economy, the MPS is 0.08 and the MPI is 0.17. If government spending increases by $35 and taxes increase by $35, what will be the net effect on equilibrium income?
Answer
| a. | A decrease of $35 | |
| b. | An increase of $105 | |
| c. | An increase of $35 | |
| d. | A decrease of $105 | |
| e. | A decrease of $15 |
1.
12.12. The term fiscal policy refers to
Answer
| a. | the adjustment of the GDP for inflation. | |
| b. | the purchase and sale of U.S. government securities to regulate the money supply. | |
| c. | the use of government spending and taxation to influence the level of economic growth and inflation. | |
| d. | the use of fines to penalize unfair business practices. | |
| e. | a policy action by Congress to overrule unpopular budget cuts by the president. |
13. If aggregate demand intersects aggregate supply in the vertical range of the aggregate supply curve, then, other things equal, an increase in government spending will
Answer
| a. | raise the price level and leave real GDP unchanged. | |
| b. | raise real GDP by the amount indicated by the government spending multiplier and leave the price level unchanged. | |
| c. | raise both real GDP and the price level by a multiple of the initial spending increase. | |
| d. | have no effect on real GDP or on the price level, because all private investment will be crowded out. | |
| e. | lower real GDP by an amount equal to the spending increase and reduce inflation. |
14. Which of the following is not a means to finance government spending?
Answer
| a. | Government subsidies | |
| b. | Government debt | |
| c. | Capital gains taxes | |
| d. | Personal income taxes | |
| e. | Money creation |
15. An automatic stabilizer is
Answer
| a. | a change in government spending aimed at achieving a policy goal. | |
| b. | an element of fiscal policy that automatically changes in value as real GDP changes. | |
| c. | an element of monetary policy that automatically changes in value as real GDP changes. | |
| d. | a decrease in tax rates as the economy moves into a recession. | |
| e. | a deliberate change in taxation aimed at increasing real GDP. |
16. Budget deficits tend to grow during recessions because
Answer
| a. | real GDP growth is zero, which causes neither tax receipts nor government expenditures to grow. | |
| b. | real GDP growth is positive, which reduces both tax receipts and transfer payments. | |
| c. | real GDP growth is negative, which reduces transfer payments in relation to tax receipts. | |
| d. | real GDP growth is negative, which reduces tax receipts in relation to government expenditures. | |
| e. | real GDP growth is positive, which increases tax receipts in relation to government expenditures. |
