浙大《经济学概论》在线作业(第5次)（Zhejiang University, Introduction to economics online homework (fifth times)）.doc

浙大《经济学概论》在线作业(第5次)（Zhejiang University, Introduction to economics online homework (fifth times)） Zhejiang University, Introduction to economics online homework I. radio questions 1., the optimal combination of factors of production is the condition A. MPk/Pk MPL/PL B. MPk/Pk MPL/PL C. MPk/Pk=MPL/PL D. MPk=MPL The correct answer: C 2. when wages increase () The A. income effect increases the labor time, and the substitution effect increases the labor time The B. income effect reduces labor time, and the substitution effect reduces labor time The C. income effect reduces labor time, and the substitution effect increases labor time The D. income effect increases the labor time, and the substitution effect reduces labor time The correct answer: C 3. the choice of monopoly firms to stop production is () The A. market demand curve is above the average cost curve The B. market demand curve is below the average cost curve The C. market demand curve is above the average variable cost curve The D. market demand curve is below the average variable cost curve The correct answer: D 4. which of the following illustrates the concept of externalities? A. bad weather caused wheat production to decrease B. wheat production reduced farmers income C. smoking impairs the health of smokers D. smoking impairs the health of passive smokers The correct answer: D 5., the western countries do not include the policy of dealing with market failure A. levies taxes on businesses that have an external negative effect B. grants and encourages production to businesses that produce external effects C. internalization of external influences D. macro-control The correct answer: D 6. which of the following behaviors is least efficient? A. he is not selfish, but he is not to himself B. selfish person unfavorable but not others. C. selfish D. dog in the manger The correct answer: D 7., when the total utility reaches the maximum, the marginal utility is () A. 0 B. 1 C. infinitesimal D. infinity The correct