Tiêu dùng potx

1 kinh t v mô bn th nm N. Gregory Mankiw Bài ging ca Phm Th Anh pham.theanh@yahoo.com (dch và sa theo bài ging ca Ron Cronovich) macro © 2002 Worth Publishers, all rights reserved CHNG 16 Tiêu dùng CHAPTER 16 CHAPTER 16 Consumption Consumption slide 1 Khái quát chng Khái quát chng    !"##$%&'( )*  +$,$ .#/0#123  ,$#!"!#45671  "!,$#45'(1   8!9$:#45;<=>  ?# @#9!&AB# CHAPTER 16 CHAPTER 16 Consumption Consumption slide 2 S phng oán ca Keynes S phng oán ca Keynes CD EF "G FC HD IG 52'(J $!7K IG L L M ND &'(ABO7PQ7B <D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 3 Hàm tiêu dùng ca Keynes Hàm tiêu dùng ca Keynes :<07R Q(S7!9T%   C     = +   L "G L7UBV#   CHAPTER 16 CHAPTER 16 Consumption Consumption slide 4 Hàm tiêu dùng ca Keynes Hàm tiêu dùng ca Keynes      = + 7UB L IG %'(JW IG 5 X(Y '(7Z2)<[D      = = + IG CHAPTER 16 CHAPTER 16 Consumption Consumption slide 5 Nhng thành công thc nghim ban u: Nhng thành công thc nghim ban u: Kt qu ca nhng nghiên cu ban u Kt qu ca nhng nghiên cu ban u  U#7\K'(#!      "G ]E  2)    "G FC  (Y'(7Z2)J    IG ↓ 2  ↑  "BO#$#!0#'(     '(K^ABO 7PQ7B< 2 CHAPTER 16 CHAPTER 16 Consumption Consumption slide 6 Nhng vn  i vi Nhng vn  i vi Hàm tiêu dùng ca Keynes Hàm tiêu dùng ca Keynes ?.#$V#%W 2.9!$_!1#  `J '  D a.7!2b7c  %'(JWIG2b5W   J7V#D  -!%de$#$_ M $f 7P!0gB)*D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 7 Rc ri v tiêu dùng Rc ri v tiêu dùng   :A. hgB)1# X IG B7P[ :A. hB)!U#7\ X IG 5[ CHAPTER 16 CHAPTER 16 Consumption Consumption slide 8 Irving Fisher Irving Fisher và và S la chn gia các thi k S la chn gia các thi k  @T!0# D  45i1K\* .#/)*# _B7#!7U!5j$!5U 71D  .#/V#1(jU !W U<7!fk.lK! )*# CHAPTER 16 CHAPTER 16 Consumption Consumption slide 9 Mô hình hai thi k c bn Mô hình hai thi k c bn  &123C)*  &123H#  %)  C '($!123C  H '($!123H  C $!123C  H $!123H  L  C −  C 2)$!123C X  FE17#$! 123C[ CHAPTER 16 CHAPTER 16 Consumption Consumption slide 10 Xây dng phng trình Xây dng phng trình gii hn ngân sách gia các thi k gii hn ngân sách gia các thi k  4<*AV#123H H H XC [     = + + H C C XC [X [     = + + −  m  #U  #6* C H H C XC [ XC [       + + = + +  B#5#!XCn  [ CHAPTER 16 CHAPTER 16 Consumption Consumption slide 11 Gii hn ngân sách gia các thi k Gii hn ngân sách gia các thi k H H C C C C       + = + + + $P)*V# $!5U71 4$P)* V#'( $!5U71 3 CHAPTER 16 CHAPTER 16 Consumption Consumption slide 12 4<*A e$# 2Z( 0#  C   H #!!k .V#1 * 2)D Gii hn ngân sách gia các thi k Gii hn ngân sách gia các thi k  C  H C H XC [    + + C H XC [    + +  C  H a# &2) &L '($! 5#123 H H C C C C       + = + + + CHAPTER 16 CHAPTER 16 Consumption Consumption slide 13 aUBV# 71A 9_< − −− −XCn  [ Gii hn ngân sách gia các thi k Gii hn ngân sách gia các thi k  C  H  C  H H H C C C C       + = + + + C XCn  [ CHAPTER 16 CHAPTER 16 Consumption Consumption slide 14      e$# 2Z( 2#0#  C   H # *7U!5j #7B< 1D S u thích ca ngi tiêu dùng S u thích ca ngi tiêu dùng  C  H + C + H a19 O##! (5 7U!5 j#! D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 15 !"#$%& !"#$%& X "8- [B7P  H 1 l67 7f!U7P  C D S u thích ca ngi tiêu dùng S u thích ca ngi tiêu dùng  C  H + C aUBV# aUBV# 719 719 O#*923 O#*923 7m!9_ 7m!9_ Q< Q< "8- "8- *7m7KD *7m7KD C "8- CHAPTER 16 CHAPTER 16 Consumption Consumption slide 16 @ZX @ZX   C C W W   H H [ [ B B 271A 271A h#(c h#(c <719 <719 O##!D O##!D Ti u hoá Ti u hoá  C  H o &*7mB W "8- LCn  CHAPTER 16 CHAPTER 16 Consumption Consumption slide 17 #JV#  C !R  H Pm71 A$#(Q# !D   phn ng th nào vi s thay i ca phn ng th nào vi s thay i ca    C  H %O5 "pc7 !b 1W5  C   H `JW q92m'( J$!123 C #123HD 4 CHAPTER 16 CHAPTER 16 Consumption Consumption slide 18 Keynes Keynes và và Fisher Fisher  % )*e(jU! '()*  ,$ )*e(jU!$P )*V#f'($!5U 71rQ17mV#'(2bO# $/9T\1Km7# !R!#0#123D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 19 I #JV#  !#71 AO# 7m X  C W  H [D   phn ng th nào vi s thay i ca phn ng th nào vi s thay i ca    C  H  C  H I ; =\9W  C 5  H JD &2O5 Km27q CHAPTER 16 CHAPTER 16 Consumption Consumption slide 20   phn ng th nào vi s thay i ca phn ng th nào vi s thay i ca    )'( =112)W.# JV#  ##25W7K <J$!5#1 23D  )# #J  J(QUV# )*W7K<5  C J  H D  5#)  ↑  H D  C J#5(jU!7U< 7BV#)'(s)#D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 21 Ràng buc ca vic vay n Ràng buc ca vic vay n  &!V#,$WQ17mV#'( 2bO#$/\1Km7#!R !#0#123  tQj =19$_'($! #V###`JW##Km$5 (YJT5#1239_7 #$!123)*D  &W 1(57BR<  '(%)X#6/ u$9U #2!5v[W \##Km2bK25J J)* V###KmA!V# %R##1\(Q# $< CHAPTER 16 CHAPTER 16 Consumption Consumption slide 22 a1< *A 2 2bK $9U #Z Ràng buc ca vic vay n Ràng buc ca vic vay n  C  H  C  H CHAPTER 16 CHAPTER 16 Consumption Consumption slide 23 4<*A K*  C ≤  C Ràng buc ca vic vay n Ràng buc ca vic vay n  C  H  C  H a1 A <$ 9U#Z 5 CHAPTER 16 CHAPTER 16 Consumption Consumption slide 24 89U# Z2b9P R  C B V#1 S   C D Ti u hoá ca ngi tiêu dùng khi ràng Ti u hoá ca ngi tiêu dùng khi ràng buc vay n là buc vay n là không chn không chn  C  H  C CHAPTER 16 CHAPTER 16 Consumption Consumption slide 25 .#/B 7m?D =!1 2b m7#W7m B# #Km.# / wD Ti u hoá ca ngi tiêu dùng khi ràng Ti u hoá ca ngi tiêu dùng khi ràng buc vay n là buc vay n là b chn b chn  C  H  C ? w CHAPTER 16 CHAPTER 16 Consumption Consumption slide 26  !,$#!"!#XCxyE[7#$#  "b\,$!$_(j U!'($!5U71W !1B7V# /D  45671!$_'(# 7fUK)B0#123 $!Bu671vV#/W 2)!((1 7D Gi thuyt Vòng i Gi thuyt Vòng i CHAPTER 16 CHAPTER 16 Consumption Consumption slide 27 Gi thuyt Vòng i Gi thuyt Vòng i  "b\95 * LV#59#7Y  L'(J!<2e X5iB7P[ + LBJ)!<2e ! L1#BQ!J  57P z {.9_2b X7m75[ z )7jB CHAPTER 16 CHAPTER 16 Consumption Consumption slide 28 Gi thuyt Vòng i Gi thuyt Vòng i  &fk.$!5U71 L * n +  am7W1#f k.0(Y9_#!1 #  LX * n + [M ! W#  L α αα α* n β ββ β $!7K α αα α LXCM ! [<'97B <V#5 β ββ β LX + M ! [<'97B <'( CHAPTER 16 CHAPTER 16 Consumption Consumption slide 29 Nhng hàm ý ca Gi thuyt Vòng i Nhng hàm ý ca Gi thuyt Vòng i 45671Km2(j7ZQ 2bB0#.   IG V#!56 71 M L α αα α X *, [n β ββ β  V#5V#U#7\2b2# '(W!'U#7\ K'(#!`KIG(0 U#7\K'((D  &!1#WfV#5'( JW2!IGf7PD 6 CHAPTER 16 CHAPTER 16 Consumption Consumption slide 30 Nhng hàm ý ca Gi thuyt Vòng i Nhng hàm ý ca Gi thuyt Vòng i 456 71!$_ 2)#7f UK) B$! B671 V#U AD Tit kim Gim tit kim Bt u ngh hu Cui i Tiêu dùng Thu nhp $ Ca ci CHAPTER 16 CHAPTER 16 Consumption Consumption slide 31 Gi thuyt Thu nhp Thng xuyên Gi thuyt Thu nhp Thng xuyên  !"! ,$#XCxy|[7#$#  45&'(&1! '()*  fV##(Y '(1  - X'($9\W!123 /`2!$!#[ '(*1  ! X0)*1!<'( $9\[ CHAPTER 16 CHAPTER 16 Consumption Consumption slide 32  =1ij2)#Z 7m7_(5* 0#7f*1V#'(D  :!45&'( 1  L α αα α - $!7K α αα α (Y'(1 7ZUJD Gi thuyt Thu nhp Thng xuyên Gi thuyt Thu nhp Thng xuyên CHAPTER 16 CHAPTER 16 Consumption Consumption slide 33 45&'(&1 Km2(j7ZQ 2bB0#.   45&'(1 IG L , L α αα α - ,  =0U#7\'(#!K'(*1#! 0U#7\'((W!'IG`( T0U#7\K'(#!D  &$!*W.#7fV#'(VW 2b(5W!.#7fV#'( 1W7 IG f7PD Gi thuyt Thu nhp Thng xuyên Gi thuyt Thu nhp Thng xuyên CHAPTER 16 CHAPTER 16 Consumption Consumption slide 34 Gi thuyt Thu nhp Thng xuyên và Gi thuyt Thu nhp Thng xuyên và Gi thuyt Vòng i Gi thuyt Vòng i  &!5#5W!1B7 V#/2(57BR<.#7f V#'()*D  &!45t671W'()*# 7fUK)B!671V#/D  &!45&'(&1W'( )*(jU!097U> *1D  5#57Km2(j7ZQ 2bB0#. D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 35 Gi thuyt v Bc Ngu nhiên Gi thuyt v Bc Ngu nhiên  !8!9$ :#XCx|}[7#$#  .#$b\45&'( &1V#,$W$!7K (jU!'(23/$! #V#1D  :#7#57P(.)/#0W !1ij50b lK7m.9!9B$!# '(D 7 CHAPTER 16 CHAPTER 16 Consumption Consumption slide 36 Gi thuyt v Bc Ngu nhiên Gi thuyt v Bc Ngu nhiên  =45&'(&17c 1K23/Z(W\ `A!1 .# 7fV#2b.7!7ZD ~ GY#7fV#'(!RV#5Km .7!7Z7{7ZQ7$!'( 123/W!'K`2b #7fD ~ eK0#7f2b.7!7ZV# '(!RV#5W#7f'( 123/W<#7f D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 37 =1A!45 =1A!45 &'(1 &'(1 K23/Z(W\0# K23/Z(W\0# 7fQ`7U7 7fQ`7U7   e20#7fQ e20#7fQ 2bm.7!D 2bm.7!D Hàm ý ca Gi thuyt v Bc Ngu nhiên Hàm ý ca Gi thuyt v Bc Ngu nhiên CHAPTER 16 CHAPTER 16 Consumption Consumption slide 38 Tâm lý mun tiêu dùng ngay Tâm lý mun tiêu dùng ngay  =0h,$ !7 :#5 7P$_1B B7#!7U!5j$!5U71D  0Y7AV#?# @#9! 0127{ AV#1D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 39 Tâm lý mun tiêu dùng ngay Tâm lý mun tiêu dùng ngay  =1!Q/01 $#O7P2b!5!D z tQjW$!UU7$#W|•€$5 1$_/2b2)7V!2 D  @#9!u&AB#v5 Q*#!!12b2) 01BB7# !7U!5j$!5U71D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 40 Hai câu hi và S không nht quán Hai câu hi và S không nht quán theo thi gian theo thi gian CD ;*Q! XI[U2•!b#W# X;[#2•!!#‚ HD;*Q! XI[U2•!#CEEW# X;[##CEC‚ &!0WY/17/ A$51I !ACW;!AHD "U17ZSAHKm/;D CEE#W2##7ZSACW A B# Km2###7f O7PV#\D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 41 Tng kt Tng kt  %!$_(jUV '()*D  =0Y7A!$_ (jU! z '()* z '(23/$!# z V#5 z {  22bB<# YO#$/7BV#0AB WV#.$9U#ZB AD 8 CHAPTER 16 CHAPTER 16 Consumption Consumption slide 42 Tóm tt chng Tóm tt chng CD @V#%  .7!V#%  "G _#E C  IG 52'(J  '()*ABO7PQ 7)*  =0.)  !B)U#7\sg1#  2ƒ7P.7!V#%  !gB) IG 2b52'(J CHAPTER 16 CHAPTER 16 Consumption Consumption slide 43 Tóm tt chng Tóm tt chng HD @V#,$..#/0#123  =1.#/0#)*s #7mB7#!7U!5j$!<*A 0#123D  &)*(jU!'($!5U 712b(5'()*Wp1 Km#s2)D ND 45t671V#"!#  &'(#7fUK)B$!671D  =1ij2)s#Z7m7 D  &(jU'(sV#5D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 44 Tóm tt chng Tóm tt chng „D 45&'(&1V#,$#  &(jUV!'( 1D  =1Kmij2)s# Z7m72K.97U *1V#'(D yD 45 ;<=>V#:#  %Z(0#45&'(&1 23/Z(D  %O5Q 0#7fV# 2b.9!7ZWe5$#2K.# 7f2b.9!7ZV#'(1 23/D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 45 Tóm tt chng Tóm tt chng •D @#9! AB#  -ijA/7mm7Z1 D  "!B# 2!! 12)Q/9$_/ D . Keynes CD EF "G FC HD IG 52'(J $!7K IG L L M ND &'(ABO7PQ7B <D CHAPTER 16 CHAPTER 16 Consumption Consumption slide 3 Hàm tiêu dùng ca Keynes Hàm tiêu dùng ca Keynes :<07R Q(S7!9T%   C  . +   L "G L7UBV#   CHAPTER 16 CHAPTER 16 Consumption Consumption slide 4 Hàm tiêu dùng ca Keynes Hàm tiêu dùng ca Keynes      = + 7UB L IG %'(JW