<P ><FONT size=3>效用函数</FONT><v:shapetype><FONT size=3><FONT face="Times New Roman"> <v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path connecttype="rect" gradientshapeok="t" extrusionok="f"></v:path><lock aspectratio="t" v:ext="edit"></lock></FONT></FONT></v:shapetype><v:shape><v:imagedata></v:imagedata></v:shape></P>
<P ><FONT size=3>其中，<FONT face="Times New Roman">x</FONT>≤1，y≤1<p></p></FONT></P>
<P ><FONT size=3>求，max(U(x,y))，st，<FONT face="Times New Roman">x</FONT>≤1，y≤1</FONT><p></p></P>