Eléments de correction de la Mini EC n°6

Sciences économiques et sociales – TES/L – Fustel de Coulanges – 2015/2016
[e-mail] - http://www.toileses.org
Eléments de correction de la Mini EC n°6
a) Exposez*un*mécanisme*cumulatif*présent*lors*d’une*dépression*économique.*
!
"#$%&%'%(&)!*+!*#,-+))%(&!#.(&(/%01+!.(//+!-#.+))%(&!01%!*1-+!2!.31)+!*+!,4#&(/5&+)!.1/163'%$)!
71)'+/+&'8!9:;<!
=&!/#.3&%)/+!>%+&!+?,6%.%'#!+'!%661)'-#!,3-/%!6+)!@!)1%A3&')!B!C!:DEF! G:;!H:DEF!
I 3&'%.%,3'%(&)!,+))%/%)'+)!9431))+!#,3-J&+!*+!,-#.31'%(&K<!
I 3&'%.%,3'%(&)!*#$63'%(&&%)'+)!93''+&'%)/+K<!
I credit'crunch!9>3%))+!%&A'!+'!.(&)(!2!.-#*%'K<!
!
b) Montrez*à*l’aide*de*deux*exemples*distincts*qu’un*choc*d’offre*comme*de*demande*peut*
être*à*l’origine*d’une*reprise.*
!
"#$%&%'%(&!*+!.4(.!*L($$-+!:!.4(.!*+!*+/3&*+!B!:;!
G?+/,6+!.4(.!*L($$-+!9:;<!B!%&&(A3'%(&E!>3%))+!,-%?!,#'-(6+K!
G?+/,6+! .4(.! *+! *+/3&*+!9:;<! B! 431))+! ,(1A(%-! *L3.43'! 9)/%.<E! 3$$61?! *+! '(1-%)'+)! 2! .31)+! *L1&!
#A#&+/+&'!),(-'%$!
C!:DEF!! G:DEF!9>%+&!*#'3%66+-!6L+&.43%&+/+&'!+&'-+!6+!.4(.!+'!63!-+,-%)+<!
!
!
Après*avoir*présenté*le*document,*vous*mettrez*en*évidence*le*lien*entre*les*variations*du*PIB*
et*ses*composantes.*
!
H6!)L3J%'!*L1&!'3>6+31!)'3'%)'%01+!,1>6%#!,3-!6LHMNGG!*3&)!6+)!O(/,'+)!&3'%(&31?E!%&'%'16#!P!Q+)!
.(&'-%>1'%(&)! 2! 6L#A(61'%(&! *1! RHS!TE! 3A+.! *+)! *(&&#+)! ,(-'3&'! )1-! 63! U-3&.+! *+! VDDW! 2! VD;X8! O+!
*(.1/+&'! ,+-/+'! *+! -+6%+-! 6+)! A3-%3'%(&)! 3&&1+66+)! *1! RHS! +&! Y! 31?! .(&'-%>1'%(&)! *+)! *%$$#-+&'+)!
.(/,()3&'+)! *+! 63! *+/3&*+! J6(>36+! +&! ,(%&')! *+! YE! .(//+! ,3-! +?+/,6+E! 63! .(&)(//3'%(&E!
6L%&A+)'%))+/+&'E!6+!)(6*+!*1!.(//+-.+!+?'#-%+1-!(1!6+)!A3-%3'%(&)!*+!)'(.Z)8!
N1-! 63! ,#-%(*+! 3663&'! *+! VDDW! 2! VD;XE! 63! .-(%))3&.+! #.(&(/%01+! *+! 63! U-3&.+! .(&&3['! *+)!
$61.'13'%(&)!,1%)01+!6+!RHS!3!.-1!*+!VEXY!+&!VDDW!,3-!-3,,(-'!2!VDD\!/3%)!31))%!*%/%&1#!*+!VE]Y!+&!
VDD]E!3&&#+!*+!63!-#.+))%(&!/(&*%36+E!%6!.(&&3['!31))%!*+)!013)%!)'3J&3'%(&)!+&!VDD^E!VD;V!+'!VD;X!(_!
%6!&L31J/+&'+!01+!*+!DEVY!3&&1+66+/+&'8!
Q(-)01+!6L(&!.4+-.4+!2!-+,#-+-!.+!01%!.(&'-%>1+!6+!,61)!31?!A3-%3'%(&)!*1!RHS!*+!63!U-3&.+!)1-!63!
,#-%(*+E! (&! -+/3-01+! 01+E! ,(1-! 6+)! ,#-%(*+)! *L+?,3&)%(&! #.(&(/%01+! .(//+! VDDW! (1! VD;DE! (&! 3!
*L3>(-*! 1&! %/,3.'! ,()%'%$! *+! 63! *#,+&)+! *+! .(&)(//3'%(&! J6(>36+! 01%! .(&'-%>1+! 2! ,61)! *+! 63! /(%'%#!
9WWW<! *+! 63! .-(%))3&.+! *1! RHS! +&! VDDW!B! ;E^! ,(%&')! *+)! VEXY! *L31J/+&'3'%(&! *1! RHS! )(&'! *1+)! 31!
*`&3/%)/+!*+!63!.(&)(//3'%(&!$%&36+E!3A3&'!'(1'!.+66+!*+)!/#&3J+)!9;E@!,(%&')<!*+A3&'!.+66+!*+)!CR=!
9DEX! ,(%&')<! +'! *+)! C))(.%3'%(&)! 9DE;! ,(%&'<8!R1%)! .L+)'! 6L%&A+)'%))+/+&'! *+)! +&'-+,-%)+)! 9USOU<! 01%!
.(&'-%>1+! ,(1-! 63! /(%'%#!9WWW<! *+! 6L+?,3&)%(&! *1! RHS! 3A+.! ;EV! ,(%&')! )1-! 6+)! VEXY! *+! .-(%))3&.+!
3&&1+66+!*1!RHS8!Q+!.(//+-.+!+?'#-%+1-!.(&'-%>1+E!013&'!2!61%!&#J3'%A+/+&'!2!63!.-(%))3&.+!,1%)01L%6!
,#&36%)+!6+! RHS! *+! DE^! ,(%&'!*+! Y8! G&! VD;DE! 3A+.! VY! *+! A3-%3'%(&! 3&&1+66+!*1! RHSE! (&! (>)+-A+! 1&+!
/(%&*-+!.(&'-%>1'%(&!*+!63!.(&)(//3'%(&!$%&36+!+'!*+! 6L%&A+)'%))+/+&'E!>%+&!01+!.+)!V!.(/,()3&'+)!
)(%+&'! '(17(1-)! +&! 'a'+!,(1-! +?,6%01+-! 6L3..-(%))+/+&'! *1! RHS! *+! VY! b! /3%)! 6+! )(6*+! *1! .(//+-.+!
+?'#-%+1-! +)'! /(%&)! *#J-3*#! +'! ,#&36%)+! *(&.! /(%&)! 63! .-(%))3&.+! 01L+&! VDDW! 9IDE;! ,(%&'! *+! RHS! +&!
VD;D!.(&'-+!IDE^!,(%&')!*+!RHS!+&!VDDW<8!
R(1-!6L3&&#+!*+!-#.+))%(&!9VDD]<!(_!6+!RHS!*+!63!U-3&.+!3!*%/%&1#!*+!VE]Y!,3-!-3,,(-'!2!VDD^E!
(&!&('+!01+!.+!01%!+?,6%01+!6+!,61)!6+!-+.16!*1!RHS!+)'!*L3>(-*!1&!'-5)!$(-'!-+,6%!*+!6L%&A+)'%))+/+&'!*+)!
+&'-+,-%)+)! 01%! +?,6%01+! VE;! ,(%&')! )1-! 6+)! VE]Y! *+! -+.16! *1! RHSE! )(%'! 6+)! V:@!9WWW<8! Q3! A3-%3'%(&!
&#J3'%A+!*+)!)'(.Z)!+)'!6+!*+1?%5/+!$3.'+1-!*+!.(&'-3.'%(&!*1!RHS!B!;:@!*1!-+.16!*1!RHS!9WWW<!+)'!*c!2!
63! .(&'-3.'%(&! *+)! )'(.Z)8! G&$%&E! 63! .(&)(//3'%(&! J6(>36+! +)'! $3%>6+! )1-'(1'! .+66+! *+)! /#&3J+)! 01%!
/3-01+!6+!,3)! 9D!,(%&'<E!)+16+!63!.(&)(//3'%(&!*+)!CR=! ,+-/+'!*+!)(1'+&%-! 6#J5-+/+&'!6+!RHS!9DEF!
,(%&'<8!