智慧树知道微观经济学-智慧树-知到-题库零氪最新考试答案

日期:2021-12-08 03:05:38

第一章测试

1、Microeconomics studies the allocation of
    A、decision makers.
    B、scarce resources.
    C、models.
    D、unlimited resources.

2、Most microeconomic models assume that decision makers wish to
    A、make themselves as well off as possible.
    B、act selfishly.
    C、make others as well off as possible.
    D、None of the above.

3、What links the decisions of consumers and firms in a market?
    A、the government.
    B、prices.
    C、coordination officials.
    D、microeconomics.

4、Economic models are most often tested
    A、using computer simulations.
    B、using data from the distant past.
    C、using data from the real world.
    D、using logic alone.

5、Which of the statements below is/are normative?
    A、Economists need to include more reality in their models.
    B、Economists will use a model until it is refuted by someone.
    C、Microeconomists study economic growth.
    D、B and C

第二章测试

1、An indifference curve represents bundles of goods that a consumer
    A、views as equally desirable.
    B、ranks from most preferred to least preferred.
    C、refers to any other bundle of goods.
    D、All of the above.

2、Convexity of indifference curves implies that consumers are willing to
    A、give up more "y" to get an extra "x" the more "x" they have.
    B、give up more "y" to get an extra "x" the less "x" they have.
    C、settle for less of both "x" and "y".
    D、acquire more "x" only if they do not have to give up any "y".

3、If two bundles are on the same indifference curve, then
    A、the consumer derives the same level of utility from each.
    B、the consumer derives the same level of ordinal utility from each but not the same level of cardinal utility.
    C、no comparison can be made between the two bundles since utility cannot really be measured.
    D、B and C.

4、If the utility for two goods "x" and "y" is measured as U = x + y, then it can be concluded that
    A、"x" and "y" are perfect substitutes.
    B、"x" and "y" are perfect complements.
    C、"x" and "y" are both bads.
    D、the indifference curves on the x,y graph will be upward sloping.

5、Joe's income is $500, the price of food (F) is $2 per unit, and the price of shelter (S) is $100. Which of the following represents his budget constraint?
    A、500 = 2F + 100S
    B、F = 250 - 50S
    C、S = 5 - .02F
    D、All of the above.

第三章测试

1、The consumer is in equilibrium when
    A、MRT = MRS.
    B、Px/Py. = MUx/MUy.
    C、the budget line is tangent to the indifference curve at the bundle chosen.
    D、All of the above.

2、By selecting a bundle where MRS = MRT, the consumer is saying
    A、"I value my last unit of each good equally."
    B、"I am willing to trade one good for the other at the same rate that I am required to do so."
    C、"I will equate the amounts spent on all goods consumed."
    D、All of the above.

3、If MRS > MRT, then the consumer is better off than at equilibrium.

4、An individual's demand curve for a good can be derived by measuring the quantities selected as
    A、the price of the good changes.
    B、the price of substitute goods changes.
    C、income changes.
    D、All of the above.

5、Sandy derives utility from consuming "all other goods," g, and clean air (measured by particulate matter removed per m3), a, as measured by the utility function U(g,a) = g0.6a0.4. The price of "all other goods" is $20 and the price of clean air (abatement) equals $10. Brian is the only other consumer in the market for clean air and demands 10 units of clean air. What is the market demand for clean air?
    A、Total market demand is 14 units of clean air.
    B、Total market demand is 12 units of clean air.
    C、Total market demand is 10 units of clean air.
    D、Total market demand is 16 units of clean air.

第四章测试

1、Efficient production occurs if a firm
    A、cannot produce its current level of output with fewer inputs.
    B、given the quantity of inputs, cannot produce more output.
    C、maximizes profit.
    D、All of the above.

2、Firms maximize profit when
    A、the additional benefit from producing a good equals the additional cost of producing that good.
    B、MR = MC.
    C、the derivative of the profit function with respect to output is zero.
    D、All of the above.

3、With respect to production, the short run is best defined as a time period
    A、lasting about six months.
    B、lasting about two years.
    C、in which all inputs are fixed.
    D、in which at least one input is fixed.

4、In the long run, all factors of production are
    A、variable.
    B、fixed.
    C、materials.
    D、rented.

5、A production function tells the firm
    A、the maximum it can expect to produce with a given mix of inputs.
    B、the average it can expect to produce with a given mix of inputs.
    C、the minimum it can expect to produce with a given mix of inputs.
    D、the average level of production for other firms in the industry.

第五章测试

1、A production function tells the firm
    A、the maximum it can expect to produce with a given mix of inputs.
    B、the average it can expect to produce with a given mix of inputs.
    C、the minimum it can expect to produce with a given mix of inputs.
    D、the average level of production for other firms in the industry.

2、Which of the following statements is NOT true?
    A、AC = AFC + AVC
    B、C = F + VC
    C、AVC = wage/MPL
    D、AFC = AC - AVC

3、Suppose the total cost of producing T-shirts can be represented as TC = 50 + 2q. The marginal cost of the 5th T-shirt is
    A、2
    B、10
    C、12
    D、60

4、If average cost is decreasing,
    A、marginal cost equals average cost.
    B、marginal cost exceeds average cost.
    C、marginal cost is less than average cost.
    D、Not enough information is given.

5、Variable costs are
    A、a production expense that does not vary with output.
    B、a production expense that changes with the quantity of output produced.
    C、equal to total cost divided by the units of output produced.
    D、the amount by which a firm's cost changes if the firm produces one more unit of output.

第六章测试

1、The Canadian metal chair manufacturing market has n = 78 firms. The estimated elasticity of supply is ηo = 3.1, and the estimated elasticity of demand is ε = - 1.1. Assuming that the firms are identical, calculate the elasticity of demand facing a single firm.
    A、-324.5
    B、275.5
    C、-275.5
    D、324.5

2、If the inverse demand function for toasters is p = 60 - Q, what is the consumer surplus if price is 30?
    A、300
    B、900
    C、450
    D、150

3、market where no single buyer or seller can influence the price is
    A、a buyer's market
    B、a seller's market
    C、a competitive market
    D、American market

4、If a competitive firm maximizes short-run profits by producing some quantity of output, which of the following must be true at that level of output?
    A、p > MC
    B、MR > MC
    C、p ≥ AVC
    D、All of the above

5、Assume a consumer has a horizontal demand curve for a product. His consumer surplus from buying the product
    A、is maximized
    B、equals zero
    C、cannot be calculated
    D、Need more information

第七章测试

1、The deadweight loss generated by a perfect-price-discriminating monopoly
    A、equals the deadweight loss of a single-price monopoly.
    B、is greater than the deadweight loss of a single-price monopoly.
    C、equals zero.
    D、equals the sum of all lost consumer surplus.

2、Monopolistically competitive firms
    A、have market power because they can set price above marginal cost.
    B、have no market power because they earn zero economic profit.
    C、have no market power because of free entry.
    D、have no market power because price equals marginal cost.

3、A monopolist faces the inverse demand curve P = 60 - Q. It has variable costs of Q^2 so that its marginal costs are 2Q, and it has fixed costs of 30. The monopoly's maximum profit is
    A、220
    B、370
    C、420
    D、510

4、A monopolist faces the inverse demand curve P = 60 - Q. It has variable costs of Q2 so that its marginal costs are 2Q, and it has fixed costs of 30. At its profit maximizing output level, the monopoly's average cost is
    A、11
    B、13
    C、17
    D、15

5、If the demand curve a monopolist faces is perfectly elastic, then the ratio of the firm's price to the marginal cost is
    A、0
    B、1
    C、2
    D、None of the above—the answer cannot be determined.

第八章测试

1、depend on following three-player game, where player 1 chooses rows, player 2 columns and player 3 matrices 11.png Which strategy of player 1 is strictly dominated?
    A、strategy M
    B、strategies T and M
    C、strategy B
    D、strategies T and B

2、depend on following three-player game, where player 1 chooses rows, player 2 columns and player 3 matrices 11.png What’s Nash equilibrium of this game?
    A、(T, L, l)
    B、(M, R, r)
    C、(B, L, r)
    D、(T, R, r)

3、(First-price sealed-bid auction) Alice is selling her 2000 chevrolet cavalier to her friends, Bob and Charles. Bob attaches a value of S$8,000 to Alice's old car, while Charles's value of the car is S$10,000. (These valuations are common knowledge between Bob and Charles.) Alice designs the following auction to sell her car: First, she asks each of them to write his bid on a piece of paper. Then Bob and Charles give their bids (nonnegative integers) to Alice. Notice that when Bob and Charles write down their bids, they don't know each other's bid (so called "sealed bid"). After Alice receives the sealed bids, the bids are shown to everyone, and the car will be sold to the person who has the higher bid at the price equal to his own bid. When there is a tie (Bob and Charles bid the same amount), then Alice would flip a fair coin to decide who will get the car. In this game, Bob has 8000 strategies and Charles has 10000 strategies.

4、(First-price sealed-bid auction) Alice is selling her 2000 chevrolet cavalier to her friends, Bob and Charles. Bob attaches a value of S$8,000 to Alice's old car, while Charles's value of the car is S$10,000. (These valuations are common knowledge between Bob and Charles.) Alice designs the following auction to sell her car: First, she asks each of them to write his bid on a piece of paper. Then Bob and Charles give their bids (nonnegative integers) to Alice. Notice that when Bob and Charles write down their bids, they don't know each other's bid (so called "sealed bid"). After Alice receives the sealed bids, the bids are shown to everyone, and the car will be sold to the person who has the higher bid at the price equal to his own bid. When there is a tie (Bob and Charles bid the same amount), then Alice would flip a fair coin to decide who will get the car. In this game Bob bids 8000 and Charles bids 8000 is a Nash equilibrium.

5、(First-price sealed-bid auction) Alice is selling her 2000 chevrolet cavalier to her friends, Bob and Charles. Bob attaches a value of S$8,000 to Alice's old car, while Charles's value of the car is S$10,000. (These valuations are common knowledge between Bob and Charles.) Alice designs the following auction to sell her car: First, she asks each of them to write his bid on a piece of paper. Then Bob and Charles give their bids (nonnegative integers) to Alice. Notice that when Bob and Charles write down their bids, they don't know each other's bid (so called "sealed bid"). After Alice receives the sealed bids, the bids are shown to everyone, and the car will be sold to the person who has the higher bid at the price equal to his own bid. When there is a tie (Bob and Charles bid the same amount), then Alice would flip a fair coin to decide who will get the car. In this game Bob bids 7999 and Charles bids 8000 is a Nash equilibrium.

第九章测试

1、Player 1 chooses either U or D; player 2 simultaneously chooses either L, M or R. Both player know only that game 1 is played by probability p and game 2 is played by probability 1-p 12.png How many strategies player 1 has?
    A、2
    B、4
    C、6
    D、8

2、Player 1 chooses either U or D; player 2 simultaneously chooses either L, M or R. Both player know only that game 1 is played by probability p and game 2 is played by probability 1-p 12.png How many strategies player 2 has?
    A、2
    B、4
    C、6
    D、8

3、Player 1 chooses either U or D; player 2 simultaneously chooses either L, M or R. Both player know only that game 1 is played by probability p and game 2 is played by probability 1-p 12.png What is the reduced game after iterated elimination of strictly dominated strategies of each type?
    A、A.png
    B、B.png
    C、C.png
    D、D.png

4、Player 1 chooses either U or M; player 2 chooses either L or C. Both player know only that game 1 is played by probability p and game 2 is played by probability 1-p 1.png How many strategies player 1 has?
    A、2
    B、4
    C、6
    D、8

5、Player 1 chooses either U or M; player 2 chooses either L or C. Both player know only that game 1 is played by probability p and game 2 is played by probability 1-p 1.png How many strategies player 2 has?
    A、2
    B、4
    C、6
    D、8

第十章测试

1、The increase in total revenue due to increasing the amount of labor employed by one unit is called the( )
    A、Marginal Product.
    B、Marginal Revenue Product.
    C、Average Revenue Product.
    D、Total Revenue Product.

2、If a competitive firm faces a competitive labor market, it will hire labor until( )
    A、w = p.
    B、w = MPL.
    C、w = MPL ∗ p.
    D、MPL = 0.

3、If a firm buys its labor in a competitive market, then a short-run increase in the price of the firm's output will cause the firm to( )
    A、offer a higher wage.
    B、hire fewer workers.
    C、hire more workers.
    D、offer a lower wage.

4、In a perfectly competitive resource market the Marginal Revenue Product Curve is( )
    A、vertical.
    B、horizontal.
    C、downward-sloping.
    D、upward-sloping.

5、In a perfectly competitive resource market the labor supply curve facing the single firm is( )
    A、vertical.
    B、horizontal.
    C、downward-sloping.
    D、upward-sloping.