Local analysis o For every i=1,I, they have the quasi linear utility function: l(x,m2)=m2+(x) and(x)>0,g(x)<0;的(0)=0 ◆( Inada condition) Standardization the price of m as 1, and pricing commodity I as pLocal analysis For every i=1,…I, they have the quasi￾linear utility function: and (Inada condition.) Standardization the price of m as 1,and pricing commodity l as p. ( , ) ( ) i i i i i i u x m m x = + ( ) 0; ( ) 0; (0) 0 i i i i i      x x   =