<pre>有两类消费者<span lang="EN-US">A,B</span>；<span lang="EN-US">A</span>类消费者的效用函数为<span lang="EN-US"> Ua = xy</span>；初始禀赋为<span lang="EN-US">(x=10,y=20)</span></pre><pre><span lang="EN-US">B</span>类消费者的效用函数为<span lang="EN-US"> Ub = 2lnx + ln y</span>；初始禀赋为（<span lang="EN-US">x= 20,y=10</span>）</pre><pre>请画图说明可能的帕雷托最优配置和完全竞争均衡配置</pre>