1、1 Lecture 3 : “ ” “ ” 5% “ ” “ ” AS-AD (,) QQ K L + + = - 0,0 QQ LK 22 22 0,0 QQ L K (,) () QQLK QL =2 Q L L L Q 0 () QK 1 () QK L MP 0 () L MPK 1 () L MPK K max ( ) L W Rp QLW LM P p = = MPL / (,) WpK D LL + = L , D L LM P W/p,M PL ( s QK D L (/,) (, , ) WpK s D K L QQ + + = / (,) s WpK QQ + + = (,
2、 ) (, 2 4 ) (,) C L UUC UC LU + = = = (/) CWpL = , max (,)( / ) C L CL U stCWpL + = C L 1 ( / ) ZWp 0 ( / ) ZWp W/p C L L s L 0 (/) Wp 1 (/) Wp3 / () ss Wp LL + = P f w f WP w = (,) s f QQ wK = / (,) s Wp DS f K QQ WP w LL = = = (,) ,. S f s K QQ w PQc o n s t = = (/) f Wp S L D L f L L L Q / Wp f L
3、 f Q f Q S Q S Q P shock shift K S L D L f L L L Q / Wp f L f Q (/) f Wp f Q S Q S Q P f Q S Q 4 / (,) s Wp u K QQ WP w = = (,) S u K QQ w = S L D L f L L / Wp (/) f Wp (/) u Wp u L sticky wages W/P P / (,) s Wp K QQ WW = = (,) S P K QQ + = (/) f Wp S L D L f L L L Q / Wp f L f Q 1 (/) Wp 1 Q 1 U 1 L f Q S Q S Q P f P 1 P 1 Q P S Q S Q P S Q S Q S Q S Q P P 5 , CIGX M () D QCIGXM =+ D Q Q “ ” D Q P 0 D Q 1 D Q 0 P 1 P AS-AD - S Q Q E P D Q E Q P S Q Q P PP f Q S Q S Q D Q D Q D Q Q Q P PP S Q S Q S Q D Q D Q D Q Q Q Q 1925 1997 6 - 1 2 1 () f Wa QQ + = S Q Q P 0 P 1 P D Q 1 D Q f Q 1 Q
