POST UTME MADONNA UNIVERSITY 2020 Economics | Objective

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Question 1 View Details
A country with a perfectly competitive market structure has a demand curve that is downward sloping. What is the implication of this for the firm's revenue?
A. The firm's revenue will increase as the price of the good increases.
Correct B. The firm's revenue will decrease as the price of the good increases.
C. The firm's revenue will remain cons\tant as the price of the good increases.
D. The firm's revenue will increase as the price of the good decreases.

Correct Answer: B

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Question 2 View Details
A firm is considering two different production techno\logies: one that uses a lot of labor and another that uses a lot of capital. Which techno\logy would you recomm\end if the firm's objective is to minimize its labor \costs?
Correct A. The labor-intensive techno\logy.
B. The capital-intensive techno\logy.
C. It dep\ends on the firm's other \costs.
D. Both techno\logies are equally good.

Correct Answer: A

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Question 3 View Details
A central bank uses an open market operation to increase the money supply. What is the effect on the interest rate?
A. The interest rate will increase.
Correct B. The interest rate will decrease.
C. The interest rate will remain cons\tant.
D. The effect on the interest rate is ambiguous.

Correct Answer: B

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Question 4 View Details
A country's GDP is increa\sing at a rate of 5% per annum. What is the implication for the country's s\tandard of living?
Correct A. The s\tandard of living is increa\sing.
B. The s\tandard of living is decrea\sing.
C. The s\tandard of living is cons\tant.
D. The effect on the s\tandard of living is ambiguous.

Correct Answer: A

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Question 5 View Details
A firm's production function is given by Q = 2L^0.5K^0.5. What is the marginal product of labor?
Correct A. \frac{L^{0.5}K^{0.5}}{2L}
B. \frac{L^{0.5}K^{0.5}}{2K}
C. \frac{L^{0.5}K^{0.5}}{2}
D. \frac{L^{0.5}K^{0.5}}{2L^2}

Correct Answer: A

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Question 6 View Details
The concept of returns to scale in production theory refers to the change in the output of a firm as its inputs are increased, while holding all other factors cons\tant. Which of the following statements best describes the relationship between returns to scale and the law of diminishing marginal productivity?
A. Returns to scale and the law of diminishing marginal productivity are mutually exclusive concepts.
Correct B. Returns to scale and the law of diminishing marginal productivity are related, but not directly equivalent.
C. Returns to scale is a special case of the law of diminishing marginal productivity.
D. The law of diminishing marginal productivity is a necessary condition for returns to scale.

Correct Answer: B

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Question 7 View Details
A monopolistically competitive firm faces a downward-sloping demand curve due to product differentiation. Which of the following statements best describes the relationship between the firm's price and output?
Correct A. The firm's price and output are inversely related.
B. The firm's price and output are directly related.
C. The firm's price and output are unrelated.
D. The firm's price and output are related, but the relationship is not straightforward.

Correct Answer: A

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Question 8 View Details
A country's balance of payments (BOP) accounts can be used to analyze its international trade position. Which of the following statements best describes the relationship between the current account and the capital account?
A. The current account and the capital account are mutually exclusive.
Correct B. The current account and the capital account are related, but not directly equivalent.
C. The current account is a subset of the capital account.
D. The capital account is a subset of the current account.

Correct Answer: B

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Question 9 View Details
Agricultural development in Nigeria has been hindered by several factors, including lack of access to credit and limited market information. Which of the following policies would be most effective in addres\sing these issues?
A. Providing subsidies to farmers to reduce production \costs.
Correct B. Establishing a national agricultural bank to provide credit to farmers.
C. Creating a national agricultural marketing board to provide market information to farmers.
D. Implementing a policy of price controls to stabilize agricultural prices.

Correct Answer: B

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Question 10 View Details
The concept of comparative advantage in international trade theory suggests that countries should specialize in producing goods for which they have a lower opportunity \cost. Which of the following statements best describes the relationship between comparative advantage and the gains from trade?
A. Comparative advantage and the gains from trade are mutually exclusive concepts.
B. Comparative advantage and the gains from trade are related, but not directly equivalent.
Correct C. Comparative advantage is a necessary condition for the gains from trade.
D. The gains from trade are a necessary condition for comparative advantage.

Correct Answer: C

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Question 11 View Details
A firm's production function is given by Q = 2L^0.5K^0.5. If the firm's current input levels are L = 16 and K = 9, what is the marginal product of labor (MPL) at these input levels?
Correct A. 0.5
B. 1
C. 2
D. 4

Correct Answer: A

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Question 12 View Details
A consumer's utility function is given by U = 2x + 3y. If the consumer's budget constraint is 2x + 3y = 12 and the price of x is 2, what is the optimal level of y?
A. 2
B. 4
Correct C. 6
D. 8

Correct Answer: C

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Question 13 View Details
A firm is a pure monopolist with a demand function given by Q = 100 - 2P. If the firm's marginal \cost is 10, what is the optimal price and quantity?
Correct A. P = 40, Q = 60
B. P = 50, Q = 50
C. P = 60, Q = 40
D. P = 70, Q = 30

Correct Answer: A

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Question 14 View Details
A consumer's demand function for a good is given by Q = 100 - 2P. If the price of the good is 20, what is the consumer's willingness to pay?
A. 20
Correct B. 30
C. 40
D. 50

Correct Answer: B

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Question 15 View Details
A firm's production function is given by Q = 2L^0.5K^0.5. If the firm's current input levels are L = 16 and K = 9, what is the total product of labor (TPL) at these input levels?
A. 32
B. 64
Correct C. 128
D. 256

Correct Answer: C

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Question 16 View Details
Determine the price elasticity of demand for a product that experiences a 15% decrease in price, resulting in a 20% increase in quantity demanded.
A. Unit elastic
B. Inelastic
Correct C. Elastic
D. Perfectly elastic

Correct Answer: C

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Question 17 View Details
A country's balance of payments is in deficit due to a large trade deficit. Which of the following policies would help to reduce the deficit?
Correct A. Devaluation of the currency
B. Increase in interest rates
C. Reduction in government sp\ending
D. Increase in taxes

Correct Answer: A

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Question 18 View Details
A firm's total revenue is given by the equation TR = 100x - 2x^2, where x is the number of units sold. Find the price elasticity of demand at x = 50.
Correct A. 0.5
B. 1.0
C. 2.0
D. -1.0

Correct Answer: A

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Question 19 View Details
A country's agricultural sector is experiencing a surplus due to a bumper harvest. Which of the following policies would help to reduce the surplus?
A. Subsidies to farmers
Correct B. Export taxes
C. Import tariffs
D. Price controls

Correct Answer: B

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Question 20 View Details
A firm's marginal \cost is given by the equation MC = 10 + 2x, where x is the number of units produced. Find the total \cost function.
A. TC = 5x^2 + 10x
Correct B. TC = 5x^2 + 10x + 100
C. TC = 5x^2 + 10x - 100
D. TC = 5x^2 - 10x

Correct Answer: B

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Question 21 View Details
A monopolist faces a demand curve given by Q = 100 - 2P and a \cost function C = 200 + 5Q. If the monopolist produces 20 units, what is the profit-maximizing price?
A. ₦50
Correct B. ₦60
C. ₦70
D. ₦80

Correct Answer: B

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Question 22 View Details
A consumer's utility function is given by U = 2x + 3y, where x and y are the quantities of two goods consumed. If the consumer's income is ₦100 and the prices of the two goods are ₦10 and ₦20 respectively, what is the consumer's optimal bundle?
Correct A. x = 5, y = 3
B. x = 3, y = 5
C. x = 4, y = 4
D. x = 6, y = 2

Correct Answer: A

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Question 23 View Details
A firm's demand curve is given by Q = 100 - 2P and its \cost function is C = 200 + 5Q. If the firm produces 20 units, what is the profit-maximizing price?
A. ₦50
Correct B. ₦60
C. ₦70
D. ₦80

Correct Answer: B

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Question 24 View Details
A consumer's utility function is given by U = 2x + 3y, where x and y are the quantities of two goods consumed. If the consumer's income is ₦100 and the prices of the two goods are ₦10 and ₦20 respectively, what is the consumer's optimal bundle?
Correct A. x = 5, y = 3
B. x = 3, y = 5
C. x = 4, y = 4
D. x = 6, y = 2

Correct Answer: A

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Question 25 View Details
A firm's demand curve is given by Q = 100 - 2P and its \cost function is C = 200 + 5Q. If the firm produces 20 units, what is the profit-maximizing price?
A. ₦50
Correct B. ₦60
C. ₦70
D. ₦80

Correct Answer: B

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