第二章测试1.
If there are two goods with positive prices and the price of one good is reduced, while income and other prices remain constant, then the size of the budget set is reduced.
A:错 B:对
答案:A
2.
If preferences are transitive, more is always preferred to less.
A:对 B:错 3.
With quasi-linear preferences, the slope of indifference curves is constant along all rays through the origin.
A:对 B:错 4.
Hans has 27 dollars, which he decides to spend on x and y. Commodity x costs $16 per unit and commodity y costs $10 per unit. He has the utility function U (x, y)=5x2 + 2y2 and he can purchase fractional units of x and y.
A: Hans will choose only x. B: Hans will choose some of each commodity, but more x than y. C: Hans will chose some of each commodity, but more y than x. D: Hans will choose only y. 5.
Wanda Littlemore's utility function is U (x, y) = x + 63y2.Her income is 184. If the price of x is 1 and the price of y is 33, how many units of good x will Wanda demand?
A:19 B:22 C:24 D:17 6.
If one utility function is a monotonic transformation of another, then the former must assign a higher utility number to every bundle than the latter.
A:错 B:对 7.
If a consumer does not have convex preferences, then a point of tangency between her indifference curve and her budget line must be an optimal consumption point.
A:错 B:对 8.
Isobel consumes positive quantities of both jam and and juice. The price of jam is 5 cents per unit and the price of juice is 10 cents per unit. Her marginal utility of jam is 10 and her marginal utility of juice is 5.
A:
Without changing her total expenditures on jam and juice, she could not increase her utility.
B:Without changing her total expenditures, she could increase her utility by consuming more jam and less juice.
C:Without changing her total expenditures, she could increase her utility by consuming more juice and less jam.
D:We can't tell whether any of the other statements are true or false without knowing the quantities she consumes.
9.
A:17 B:24 C:22 D:19 10.
If the equlibrium price of gasoline is $1.00 per gallon and the government places a price ceiling on gasoline of $1.50 per gallon, the result will be a shortage of gasoline
A:对 B:错
