微观经济学(袁正)习题及答案汇总

YYY的43XPPY。xyPMUxPMUxyyPU/X4XYY4333，所以PXxPY,代入PP=M中，得xU/Y3XY3XxyPyy4233PYMY.y77YX（xxXP和Pab121212（X和X？12（X和X12maxxx:12px+pxm1122mmx，x2pp12xp1mxp2mx:x1212pxpxxe1xe121121p2xp21x2112。U(x,x)xx,求边际替代率U/xU/xaxxa1baxa1b2dxMRS2112122.112dxa1b1xbxbx2axd2MRS2212dxbx0122111211U(x,x)xx,求边际效用,边际替代率12U(x,x)xx,论证边际效用与边际替代率之间的关系12U(x,x)xx,证明边际替代率递减a1b212。xy求量各为多少？（重庆大学1999研）2y100xx121xy11yxy22250xX和YP和P。4XYxyUUy4，4xy3对x和yP=P4yxxyyy443:Py1·y4y1·yP+P=M4xyyP·yP·yMyy4·yP5y45(xx)xxpx11221212124XY2m.x1p1X312替代效应:xx(p,m)x(p,m)s1'1'111Xp=X3111X311收入效应:xx(p,m)x(p,m)n1'1'1'11X7+11。(希克斯分解）yy消。求x，xx2dudx2x360x9yx994436uxduxx236x49x360dx28xy9x4yI4I9xx9xy324xxdII9x02dxAB。BC。yy为xmp(211120(,)(2,120)1016'1'11021111180,m)x(2,80)1010211111。c和cc=cc121212124x4x。12。计算补偿变化：m1m111()()5050,m则收入的补偿变化14110041222242计算等价变化：m1m111()()2550求解,m70,则收入的等价变化1007030222222：112121x1x2p21221t1121211221212111222122xyXCmm0.41212。11假设一个消费者的效用函数是u(x,x)xx,221122收入是100。问：当商品的价格下降至时，求CV,EV？LL23L生产函数24qlkf(x,x)xx1212）f(l,k)2kl9623?、f(x,x)xxP,1212）t.yxxwxwx112212L(x,x,wxwx)(xxy)12112212wx2yxx0wx01/211/2212212wy2wy1x(ww,y)()x(ww,y)()22www12w221212。1/21/2且，LWKr;2min3KCL121使得QLK2112F(L,K,)LKQLK3()21ELKL11133100K2L,L,KQ,KLL3233F13L3LKQ3Q2Q3K2K2323FQLK0y(x,x)xx.1/32/3f1,1212与与Lminwxwxyf(x,x)x1/3x2/3.1122x,x0121212/yx)()x*2/3xw*2/32*1/3111/yx(2/)()wx*1/3x2212x*2*.2x12w22/322/3wwx*2x*.1y(x1)*.1*11/31x*11xwww2222/3yw2/31/32ww2wx*12yx*2y1212w2www1212c(y)0.1y2y15y10,132s(,2002。p(y)s:p0.3y4y15241.2p2y0.6当y时,pAVC0.1y2y152s即:0.3y4y150.1y2y15,y10222ww2/32w1/3yy1x*2pAVC0.1y2y155122w2wws或者,y021241.20.6p2,p5y5p、已知短期成本函数c(y)y8y30y32s求它的供给函数。s得到:p3y16y3022s22,y0所以，当y时，反供给函数为p3y16y30，2在其它条件下，y0c(y)y1,32p(y)p2yy,p2y,p2Q3Q2Q.)STC0.1Q322Q32322∵∴2即13=322040202.520204010)32322.某完全竞争行业中