高级微观经济学summary(编辑修改稿)内容摘要:
nors College of PS. • Y is nonempty: we have something to do. • Y is close: Y contain it’s boundary, • No free lunch: See the fig. • Free disposal: See the fig. t h e a r r a y , a n d m e a n s nn y y y Y y Y{ 0 }nYn yYlecture 1 for Chu Kechen Honors College of PS. • Additive (free entrance) : • Convexity: See the fig. • Proposition1: if Y is convex, so is V(q). • Proposition2: if V(q) is convex, f(x) is quasiconcave. , a n d , t h e n y Y y Y y y Y, a n d , t h e n ( 1 ) , h e r e [ 0 , 1 ] y Y y Y y y Ylecture 1 for Chu Kechen Honors College rate of substitution • Marginal rate of transformation (MRT) of good j for good i at y and T(y)=0. • T(y)=0, we got: See the fig. ( ) /( ) /jjiiTyM R TTyyy1212( ) ( ) 0TTd y d yyy yylecture 1 for Chu Kechen Honors College rate of substitution • one production: the marginal rate technical of substitution at x* . • As x changes , we got technical rate of substitution ( ) /()( ) /jjiifx。高级微观经济学summary(编辑修改稿)
相关推荐
00m in ..1AAAa b abxxabAaaaAaaxxs t x R RxAsset market • CAPM: – The first order condition: – If a portfolio is meanvariance efficient, means invest 100% in asset e and 0 in others is MV
一种商品消费来说,其收入效应系数在各个消费者之间都是一样的 , 即 ),2,1(),(),(),(222111 hr rpr rpr rpmmmhhh 总需求成为总收入的函数 当且仅当 每个消费者 i 都具有 Gorman形式的需求映射 : , 其中 Ai( p) 和 B( p) 是与 p 有关的向量 , 并且 B( p) 对每个消费者都一样。
ondition is given by: 100— 2y1— y2=0 and 100— 2y2— y1=0(since firm 1 and 2’s marginal costs are both zero), so we can get the Cournot equilibrium amount of output for each firm as (100/3 100/3)
u G u GPublic goods • When there is no freerider? • For 1, • Or 111 1 2 1,11 1 1m a x ( , ) . . 0 gxu g g xs t gw g x111,21 2 1m a x ( , ) . . G Gxu G xs t gw g G x Public goods • Let be
: if xs, xt are in Y, and choice by firm under price ws and wt. then . we can get: t t t sw x w x w x 0lecture3 for Chu Kechen Honors College x2 xA x1 xB x2 xA x1 xB lecture3 for Chu Kechen
us x2 x(p1,w) x(p0,w) u1 u0 L1 x1 L2 across consumers • Can a society behave like a ration man? • If a society behave like a ration man, can the utility of this “man” represented the welfare of