Principal-agent Modeling責任代理模式.pdf

Principal-agent Modeling 責任代理模式 Dr. Chak-Tong Chau 仇澤棠博士 U.S. Fulbright Professor 中美交流富布萊特教授 1 我請您們考慮一些問題  A small medical insurance scenario 一個醫療 保健的問題 When you have a small illness, do you normally see your doctor? 當你有小病的時候，你會不會自費看醫生？ What about, if your firm pay for your expense? 但是，如果是單位付錢呢，那又怎樣？ Dr. Chak-Tong Chau Fulbright Guest Lecture Materials 2 我請您們考慮一些問題  A car maintenance scenario 一個汽車維 修的問題 Your car is being rented for 2 months. Supposedly, it needs oiling every month. How likely you will remember to do so? 你的汽車是租來用兩個月的，它需要每月潤滑上 油一次。你會不會依時地去上油？ How about if this is your own car? 如果這是你自己的汽車，你又會不會去做？ Dr. Chak-Tong Chau Fulbright Guest Lecture Materials 3 我請您們考慮一些問題  A medical insurance problem 自費醫療 保險的問題 When we purchase medical insurance, the insurance company usually requires that you disclose your medical history. Pre-conditions are usually excluded from the coverage. 購買保險的時候，它們通常要求你列出你的病 歷。但是如果你有大病的話，很可能保險公司不 愿意受保。 Dr. Chak-Tong Chau Fulbright Guest Lecture Materials 4 我請您們考慮一些問題 If you do in fact have some major medical problems that require expensive treatments, would you disclose these problems? 如果你真的有大病, 你會不會真實地上報？ What do all these tell us about certain human behavior? 這些問題表明了一些什么的人性行為？ Dr. Chak-Tong Chau Fulbright Guest Lecture Materials 5 Agency Problems and Behavior 代理人的行為与問題 • A moral hazard problem (道德危机問題) when an individual has an incentive to deviate from the