)满足这样的激励机制
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">但是需要注意的是，此时约束中的二为已知的<SPAN lang=EN-US>.</SPAN></SPAN></P><SPAN style="FONT-FAMILY: 宋体; mso-hansi-font-family: " Roman?;? Roman?;mso-ascii-font-family:?Times New Times><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"></SPAN></SPAN></SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">当代理人真实的汇报自己的信息和特征的时候，可以得到下面的条件<SPAN lang=EN-US>:w(z(</SPAN>二<SPAN lang=EN-US>)</SPAN>，，<SPAN lang=EN-US>(</SPAN>二<SPAN lang=EN-US>)</SPAN>，二<SPAN lang=EN-US>)</SPAN>全<SPAN lang=EN-US>w(z(</SPAN>二‘<SPAN lang=EN-US>)</SPAN>，，<SPAN lang=EN-US>(</SPAN>二‘<SPAN lang=EN-US>)</SPAN>，二<SPAN lang=EN-US>)</SPAN>，愉，二‘任<SPAN lang=EN-US>0.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">(2</SPAN><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">一<SPAN lang=EN-US>12)</SPAN>这个不等式说明，给定<SPAN lang=EN-US>Z</SPAN>和艺的情况下，对代理人来说，选择真实的汇报自己的特征和信息是最优的策略选择<SPAN lang=EN-US>.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">(Guesneri</SPAN><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">。<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">那么就称行动变量<SPAN lang=EN-US>Z:</SPAN>二任<SPAN lang=EN-US>O</SPAN>、<SPAN lang=EN-US>Z(</SPAN>劝是可行的<SPAN lang=EN-US>.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">3.</SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">和<SPAN lang=EN-US>Laffon</SPAN>七<SPAN lang=EN-US>)</SPAN>显示机制<SPAN lang=EN-US>(l(</SPAN>二<SPAN lang=EN-US>)</SPAN>，《二<SPAN lang=EN-US>))</SPAN>是真实的当下面的条件成立<SPAN lang=EN-US>w(z(</SPAN>二<SPAN lang=EN-US>)</SPAN>，，<SPAN lang=EN-US>(</SPAN>二<SPAN lang=EN-US>)</SPAN>，二<SPAN lang=EN-US>)</SPAN>全<SPAN lang=EN-US>w(z(</SPAN>二‘<SPAN lang=EN-US>)</SPAN>，，<SPAN lang=EN-US>(</SPAN>二‘<SPAN lang=EN-US>)</SPAN>，二<SPAN lang=EN-US>)</SPAN>，愉，二‘任<SPAN lang=EN-US>0.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">(2</SPAN><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">一<SPAN lang=EN-US>13)</SPAN>这个定义说明<SPAN lang=EN-US>Z</SPAN>和艺是保证代理人说真话的机制，即支付函数艺的作用使得行动函数<SPAN lang=EN-US>Z</SPAN>是可行的<SPAN lang=EN-US>.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">3</SPAN><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">中的不等式形式相同，但是后者强调了整个机制的可行性，而前者仅仅关心行动变量<SPAN lang=EN-US>Z</SPAN>的可行性，因此，它更加适用于研究委托人具有<SPAN lang=EN-US>}</SPAN>川类偏好类型的情况<SPAN lang=EN-US>.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">2</SPAN><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">和定义<SPAN lang=EN-US>2.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">需要注意的是，尽管定义<SPAN lang=EN-US>2.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">下面，讨论一系列相关的间题<SPAN lang=EN-US>.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">·可行性问题，即满足什么条件的行动变量才是可行的<SPAN lang=EN-US>?</SPAN>或者说什么才是一个真实的机制<SPAN lang=EN-US>?</SPAN>·优化问题，即在所有的可行的行动变量中，哪一种对委托人来说是最优的<SPAN lang=EN-US>?</SPAN>在具体建立讨论这两类间题之前，有必要给出两个重要的前提条件<SPAN lang=EN-US>.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">(a)</SPAN><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">当代理人的特征参量口是委托人的完全信息时，即委托人知道代理人的特征时，委托人的优化问题是如何在考虑代理人的个人理性约束<SPAN lang=EN-US>(2</SPAN>一<SPAN lang=EN-US>11)</SPAN>的前提条件下最大化其自身效用<SPAN lang=EN-US>.</SPAN></SPAN></P><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体"><SPAN style="FONT-SIZE: small"><SPAN style="FONT-FAMILY: 宋体">
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">和<SPAN lang=EN-US>Laffon</SPAN>七<SPAN lang=EN-US>[20})</SPAN>如果存在一个货币支付函数，<SPAN lang=EN-US>(</SPAN>二<SPAN lang=EN-US>)</SPAN>满足这样的激励机制即<SPAN lang=EN-US>(Z(</SPAN>劝，艺<SPAN lang=EN-US>(</SPAN>劝<SPAN lang=EN-US>)</SPAN>诱使代理人真实的汇报自己的信息和特征<SPAN lang=EN-US>.</SPAN></SPAN></P>
<P class=MsoPlainText style="MARGIN: 0cm 0cm 0pt"><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体">定义<SPAN lang=EN-US>2.</SPAN></SPAN></P><SPAN style="mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体"><SPAN style="FONT-SIZE: small"><SPAN style="FONT-FAMILY: 宋体">
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><U><SPAN lang=EN-US style="COLOR: blue"><a href="http://www.51-sci.com/article/html/326.html" target="_blank"><SPAN style="FONT-FAMILY: " Roman?;? New Times>Chinese Journal of Chemical Engineering投稿</SPAN></A></SPAN></U></P></SPAN></SPAN></SPAN><BR><A href="http://blog.chinaunix.net/cp.php?ac=blog" target=_blank>教育技术专业教育硕士</A><BR><A href="http://blog.sohu.com/people/!a2xoamtqaGtqQDE2My5jb20=/176803928.html" target=_blank>委托人的偏好有两种可能的类型</A></SPAN></SPAN></SPAN>
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