7. If the price-quantity combinations (P=5, Q=6) and (P=5, Q=12) are on the samesupply curve, then this segment of the supply curve is
(A) Perfectly elastic.
(B) Elastic.
(C) Inelastic.
(D) Perfectly inelastic.

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相關試題

8. Assume the law of supply and the law of demand hold for a particular good. Whenthe price of the production factors for this good increases:(A) Both consumer surplus and producer surplus will increase.(B) Both consumer surplus and producer surplus will decrease.(C) Consumer surplus will increase, and producer surplus will decrease.(D) Consumer surplus will decrease, and producer surplus will increase.

9. Assume the rent ceiling is effective and both the law of demand and the law ofsupply hold true. When the government raises the rent ceiling,(A) The market transaction volume will increase(B) The market transaction volume will decrease(C) Deadweight loss will increase(D) Both ( B ) and ( C ) are correct

10.Whether the tax is mainly borne by the buyer or the seller depends on(A) The amount of the tax (B) The relative elasticity of supply and demand(C) The cost to the firm (D) The quantity of the market equilibrium

11.If the world price of a particular good is higher than the domestic price, thenafter opening up to trade,(A) The domestic producer surplus will be greater than before trade.(B) The domestic producer surplus will be smaller than before trade.(C) The domestic consumer surplus will be smaller than before trade.(D) Both ( A ) and ( C ) are correct.

12.Which of the following will definitely reduce the consumption possibility?(A) Income and the prices of all goods increase(B) Income and the prices of all goods decrease(C) Income increases, and the prices of all goods decrease(D) Income decreases, and the prices of all goods increase

13.The table below shows a consumer’s utility when she consumes X and Y. When theprice of X is Px = $6, the price of Y is Py =$12, and the income is $54, what is the utility-maximizing combination of (X, Y)? (A) (4,2) (B) (4,3)(C) (3,3) (D) (3,4)

14.Which of the following statements about the shape of an indifference curve iscorrect?(A) The higher the substitutability between two goods, the smaller the curvatureof the indifference curve.(B) The higher the substitutability between two goods, the greater the curvatureof the indifference curve.(C) The indifference curve of perfect complements is a straight line.(D) Both ( A ) and ( C ) are correct.

15.For an inferior good, when its price decreases,(A) The substitution effect causes its consumption to increase.(B) The substitution effect causes its consumption to decrease.(C) The income effect causes its consumption to increase.(D) Both ( B ) and ( C ) are correct.

16.Assuming labor is the only variable production factor. According to the tablebelow, as total output increases, the marginal productivity of labor: (A) Continuously increases (B) Continuously decreases(C) Increases first, then decreases (D) Decreases first, then increases

17.Assuming that the marginal productivity of labor decreases as the amount of laboremployed increases. In this case, the marginal productivity of labor should be____ the average productivity of labor.(A) Greater than (B) Equal to(C) Smaller than (D) All of above are possible

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