微观经济理论测试题库：tb06

1、Chapter 6Demand Relationships Among Goods45.If a rise in the price x causes less y to be demanded,*a.x and y are gross complements.b.x and y are gross substitutes.c.x and y are net complements.d.x and y are net substitutes.46.With only two goods, x and y, if x and y are gross substitutes, a rise in

2、px must necessarilya.increase spending in x.b.reduce spending in x.*c.increase spending in y.d.reduce spending in y.47.Two goods are Hicksian (net) substitutes if a rise in the price of one causes a(n)a.decline in the quantity demanded of the other holding nominal income constant.b.increase in the q

3、uantity demanded of the other holding nominal income constant.c.decline in the quantity demanded of the other holding utility constant.*d.increase in the quantity demanded of the other holding utility constant.48.With the Cobb-Douglas utility function , x and y and gross substitutes and gross comple

4、ments.* substitutes and neither gross substitutes or and gross complements.49.In the Slutsky equation for , the income effect is given bya.*b.c.d.50.The primary additional insight provided by expanding the theory of choice from two to three goods is that a pair of goods may now bea.gross substitutes

5、.b.gross substitutes.* complements.51.“Hicks Second Law of Demand” states that “most” goods must bea.gross substitutes.b.gross complements.* complements.52.Quasi-concavity of utility functions insures that with only two goods, these goods must bea.gross substitutes.b.gross complements.* complements.

6、53.If goods x and y are complements, then the cross price elasticity of demand between them will bea.positive.*b.negative.c.zero.d.infinity.54.If utility is separable in a three-good utility function then for changes in a.both be gross substitutes for x1 .b.both be gross complements for x1 .c.be suc

7、h that if one is a gross substitute for x1 , the other is a gross complement for x1 .*d.both be gross substitutes or both be gross complements for x.55.For the “Composite Commodity Theorem” to hold, all goods in the composite musta.have constant prices.*b.have constant relative prices.c.be used in f

8、ixed proportions.d.be net complements.56.The attributes model of consumer choice explains the possibility that an individual does not purchase a particular good, z by assuminga.the persons preferences do not favor z.*b.linear combinations of other goods dominate z.c.that MUz /pz is less than the mar

9、ginal utility of income.d.z is inferior.57.Symmetry of net substitution effects is one of the principal conclusions of the theory of utility maximization. Which two mathematical theorems are used to prove this symmetry?a.Taylors Theorem and Fundamental Theorem of Calculus.b.Cauchys Theorem and DeMon

10、res Theorem.c.Lagrangian Theorem and Fundamental Theorem of Calculus.*d.Envelope Theorem and Youngs Theorem.Questions 5861 use the following definitions for an individual who consumes only two goods:sx = share of income spent on x.sy = 1 sx . = price elasticity of demand for x. = price elasticity of

11、 demand for y.ex, I = income elasticity of demand for x.ey, I = income elasticity of demand for y. = cross price elasticity of demand for x. = cross price elasticity of demand for y.58.Homogeneity of the demand function is shown by:*a.b.c. .d.59.A generalization of Engels Law is given bya.*b.c.d.60.The elasticity of the compensated demand curve can be computed asa.b.*c.d.61.If the demand for x is given by , which of parameter values hold?a. .*b. .c. .d.None of these relations hold since the demand function is not