<font face="TimesNewRomanPSMT"><p align="left">２道小题，不知从什么样的思路答出，很着急，恳请高手们驻足赐教阿～～～！！！　谢谢谢谢谢谢了！！！</p><p align="left">Answer briefly each of the following two questions. Please provide all the analytical and graphical reasoning you find useful to support your answer:</p><p align="left">a. Distinguish moral hazard from adverse selection and illustrate the failure of the first theorem of welfare economics in the presence of one of these problems.</p><p>b. What is the free-riding problem? Why should we care?</p><p></p></font>

[此贴子已经被作者于2008-12-3 9:19:36编辑过]