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HAL Id: halshs-00525377

https://halshs.archives-ouvertes.fr/halshs-00525377

Submitted on 11 Oct 2010

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L’influence des auditeurs externes et des comités d’audit sur le contenu informatif des manipulations comptables

Rémi Janin, Charles Piot

To cite this version:

Rémi Janin, Charles Piot. L’influence des auditeurs externes et des comités d’audit sur le contenu informatif des manipulations comptables. LA COMPTABILITE, LE CONTRÔLE ET L’AUDIT ENTRE CHANGEMENT ET STABILITE, May 2008, France. pp.CD Rom. �halshs-00525377�

(2)

L’influence des auditeurs externes et des comités d’audit sur le contenu informatif des manipulations comptables The Effects of External Auditors and Audit Commitees on the Informativeness of Earnings

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5 = = " + $ * 5" E 5 " 5 = * 6

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* 6 * F G + * 1 6 * ( 6 5 5

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Introduction

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"# 5 = < #" + : ( ; " 5" 5 = "

" = 56 < ( " # 5 * " *

*9 A 55 5 " 6 < #" 5 " ( ( (

" = 5 " = ! " 6 5 "

2 " 6 " 5 5 = " + 8# " ?" 5 =" *

! 3 + "# 5 " ( " 2 * * " 5 "

( 5 "! ; ( ! " " + 8 "

> E B 00/C **9 < " * " 5 = 5

" " < #" 5 " + K 6 B )C < "

5 "# 2 " " 5 "

" 5 " + 5 " " ( " " * = 2

B 00 C( " 2( 55

+ 8# * " K 6 < " < " "# ( "" < 5 A

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! ; 5" 5 " 6 2 5 " ! 5 " "

2BK" ( 7 ( -C+

@ " ( " * 2 A " 5 " <

" = " < " 5 # +

2 2 = 2 *" 2 #=9 5 " 9

" 5 A + 8 5 " < " 9 (

2 " 9*" 5" ? < " 5 5 ( ( 5

5 5 " 6 < ( 5" * 5 ! "#55" 5 5

5 + @ " " < " " * # 2 = =

" " 6 5 " 5" ? < " 5 ( *

"#2* * " 5 " 2 5 + &

B .C 5 < # 1 ( " ! # 5 # "

5 * = " 5 5 5 ! 5 " " " + > 2

55 ' B 00 000C5 55 7 B C( " #

" * = " 55 * A + 5 "

= " ( " * " ?" (

+ # < %6 E7 ( (

5 5 5 " "# 6 ( * < "

# # M 2 " * " N+ D ( " = " 6 5 "

A = " 55 " # " 5 * = = ! # *

"# " * " * = " * 6

5 " + & B .C = < # 5 # # ( "

5 ! " * " = " 2+ @

2 ( " # " = " " 6 5 " 5" ?

< " 5 ( " " = + D 6 5 < = "

! "# 5 = < " 5 # ( " = "#

2 " # ( "

1 + 8 "# " = " 55 " 6E5 69 6 6 + 8 5

" 5 6 " *< + 8 ) " " 5 < + " (

" 5 5 2 55 = "+

(5)

-

1. Cadre d’analyse et hypothèses de recherche

8 " 5 " * " E

5 2 " 2 < ! " = " 5 +$" 5

# * 5 " ( 5" 5

"#2 ( < ( < #E 5 "# 3 #

( 5 3!! = " +@

5 < #55 E " 6 " * # "

" 9 " = " 5 " = " 5 5

( "" "" @ 6 F B00-C5 " O B C5 "

1 + 5 ( " 5 2 * #2 " 5

5 " 2* ( "

" 5 < ! < " 5 M*9 N" 6 5 "

< #"" 5 " 5 " = BH "E P 6" ( 000 @ (

)C+

8 5 " " " 2 5 = 5 ! 2

* 3 BH " 6 ( 00 H "E & " 5 ( 00)C+ 6 6 ( " 5"

( 9 < " * = 5 55 "

< 2 2* "" ( *" ( 5 " < ( * "

2< "" 25 " ( ! " 6 5 " "" "

5 " BP Q ( 0 /( 00 C+ @# 6 6 ( 5" (

9 < " 5 " 5 " 5 " 2

= " "" 5 5 = #= ( "# 5 " 5 5 !

"" " # 3 ! " * 5 5 < * =

" B> E ( 00/ E "+( 00/ K 6 ( )C+@

5 5 = ( 2 " E "" "

5 2 ( " 9 " 6 5 " = " 5 " 5

# 55 5 5 "9 5 " 5 <

5 " " "# 9 + # ( " < " "

= 5 ! = ( " = 5 " +

8 < " 9< = " # # 5 = " 5

"# " "# 9 + = " = "

< " 55 ( 5 A ( 5 # " +

% "" ( 5 5 #55 " * " "# 2 (

(6)

" * = " 5 "" 5 @ * " B0 C," < " "#

" " 5 " < "# 2 " 5

" B 5 C( " =9" 6 B 5 C+% (

1 5 " 5 55 ' B00 C(" < " 5 #

9* 5" 5" " ?" = "" # (

"# # + < ( * " *

5 < " "# = " 55 6E5 69 = "# 2

# ( # +

8 2 = = "" 5 2 < "

"" "# " 5" 5 5 " (! = "

5 +> "# *" " " ( # ! "# # * " * = (

"# "! < 5 "#55 * "+> "# *" "

5 ( # ! "# " 5 " 5 < ("#

< "< * < 5 #5 " * " = 6 " 5 " 5

" 5 " + " " (" < " "# 2 =

5 2 " "# 5 " * 2

" = +8 5 # ! * 2 5 * "

55 5 "" B@ * " ( 0 C 5 5 BK" 8 " ( 0 C+

" " (" * # B" 7 *DC " 5 =

# < " " * = = " "

" " 5 6 5 " +

D ( "# 9 " = 6 5 " B"

= " M5 NC( " " 5 < " 5 2

" + @ 2 "# "

5 " +8 5 9 ( " 0 5 % 6 P *

B00)C( < " 5 B ( C

< 5 " 5 " 7 *D+ 8 (

" 5 00 5 6 6 B C = ) .0- = (

< " 5" " 5 " 5 " 7 * D+ K 6

B )C #55 9" # " 9 5

5 "( 5 9 "2 5 "(

2 2+ > ( " 5 0 0 00 ( < "

(7)

/

2 ( < " #; 5 7 *D

+

I " " 9 ( * 5 5

M = N"#55 6 K 6 " 6 A ( 2

" + 8 M = N * # (

= " < ( " " #; E < + ( " 2 5

< " 6 5 " " < " * " * " , "

< # 6 6 " "

5 "# + & 2 5"( " " = 5 " "" *

?" 5 " 5" = "# 5

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""( < M N+ @# 9 * " (

"# 3 M " N 5 < 5

5 " " 6 + 3 ( ( "

! 5 " * ( " 5 5 5" ? <

9*" + $" " ( 5 < ( "" 3*

5 " = 5 = " 2 +

8 5 " A L 2 " 5 L * "

5"5 5 " *" 2 5" 5 + H < ( "

# = " 5; 5 2 B < ( 9 C( =

5 ! "#55" 5 5 5 + 8# 3 " *

2 "# " = ! " "= " " ( 5" ? < #

2 R " 5 5 = 5 + 8 A

2 " 9*" B C 5" ? < " 5 5 , "

2 2 E 5 5" "( 5 5 * " (

# "" ( 5 " + % 5 ! " " = " 5 (

5 " **9 " < # 55" 2 = 5 5 5 5 ;

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5" 5 < ! < " 5 # * # B

7 * DC * 5 ! " * " 5 " + 8# K "+

B )C < " 7 *D 5 "

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.

5 = ! = 6 2 5 " + @9 " ( 6 6 2 "

" 6 < " "# ( 7 *D ! M N"#55

* B7 G "+( 00 C( ( 5 < ( " "2 " 5 "

5 5 " 6 " 5 5 = " +

# ( 5 " = " 5 # "

1 ( " 7 * D = = ! "# * " ! " 5

" 5 " + @#S 5 9 6E5 69 ,

! " #

! "

$" = 5 6 2 5 J "" "# "

5 " < " = = # + 8# " ( = 5" "

5"< " * "# ( # # "" " * "# 6

< + 8 5 5 "5 "9 = " * "" (* " (" !

" 5 *" " "# 5 ! 5 ( 5 (

5 " " + : ( 5 = 5

* " 5 # 5 ( = 5 *"

# 5 = ! = # " + & < ( = 55 6 5 5"

M N " < " "# = 6 9 " 6 5

6 6 5 < + & (" " " R

" * " = # *" 2 +

8 " " 6 = < # 5" *

"# " ! " "* ( ! "# 5

5 + 8# 25 " K 55 B00 C( #

( =9" < " 5 ! " # 5 9

# (5 * "" 5 = " 5"

59 "" + (" 5 " "*

# < # " * " " "

5 " ! " # 6 "#55 # 5 ( * " 5"

"# "2 ( = 5 =*" = ! =

5 "" < # * " +

% (" 6 * " " "< "" " < " "# = "

" " = (5 "#6 ( 55 5 < ""

(9)

; ! ; + * " (" = 2 5 " ""

= < 6 "" + & 2(8 "+ B /C = < "

5 " # # B = C # 5 ! "#

"# + 1 G " "+ B C = " * = " " "

" 2 = " " ( < #

5 " < *9 " " ! " + @ 9 " ( E

"+ B )C < "# "# 5

2! " 5 * + 8 = 25" P "" B -C(

E " "+ B -C "# * = " " "

( " 2 = " " +

6 "+ B C * " " "

B ) C( E B- C( " * B0 5" C+ " 5

" 7 *D " 5 0 / 00 ( " = < # " !

2( < # " " *

* " + D *EB C 5 " ; # ! " 5

)( = 59 " "" # + $" < " "

" * 2 5 = ! "# 5" 2(

** "#2 # 5 " " " 9

* " + ( ("# < " 5 =

6 6 B C( 5 B C 5" " < "

" # ( ! 5 # " * 6 ""

" 00 +

(" 5"5 = 2 5 < 5 " "#6E5 69 #

" < " "# = " 5 + 7 # "" ; "

( ** < "# 2 * * 5 "

5 # "" 25 " + 5

#; 5 < + &" * " ( "5 ;

= < " 5 " 6 < 5 < =

# 5 RR"(" < " " ""

" 5 < " "# ( " " * +

(10)

0

$ % & #

( = " 5"2 56 9 ( "# * T < #" " 6 (

5 6E5 69 6 6 "" ,

&

'

= 5 (" 5 5 * = *" 2 = !

"# 5" " # " = "" * " 5

"" 1 5 55 ' B00 C+ #

< * = " "E " 5"

# ( 6 * = " " 5 5 " 5 5 " 5 " * (

5 = " B 2 C 2 " 5 "

= " # * " ( "# 5 "# 2 =

" 56 " = "" * # (

* 6 + @ 5 < = "" = 6 2

5 " ("# # 55 (! " ( *

# 5 5 55 2 * +

8 = 2 5 < < 9 "# " 5 # # (

5 ( " 6 5 " "!

( B " C ,

& +U = " V

B 55 * C ,

& +U V ""

5"

" B" 2 C

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* "(

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& * "(

5" 5" "

5 " * 55

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"" ( 5 2+ 5" 5 (P " B00-(

00/C 9 / E = " B!"#5 < C #

" 5 0// 0 + $" = < * = "

" " "# < " 5" + $"

" "# = 5 = = J 59 # 2 , "

5 !"# " B C( " = "

3 " " # + # 5 # ("

" 5 + "+ B )C 2 " *

5 "# B - = C " 9" < " 5 5

# 5 " # # " 5 "

" 5 B"# C+ = 6 (7 E "+ B -C(!5 >W&

" 5 00/ B ) = C( < " 5 #

# X 5 ! " * = 5 (

" "# " 5 " "+ " "

# 5 5 & B .C = " " (

< = 5 5 " " = " ! "" 7 E "+ B./

= " = 2 >W& " 5 00/ 000C+

" " ( " " (= ( 5 "

" ! * 6 < 5"9 < ! "# # = ""

5 # " 6 5 " + D

* " < " < "< = 2 5 < 5 " # " 5 " 5

" 5 "( 9 " 5 5

" 6 + (!"# = "55 5 5 5" 6 5 " *

# (" 5 < # 3 !" "2 " 5 "(" #

5 5 M N "# * " 5 " * " (

" 5 +

1 (" 5 5 = " # 5 "

; # # ( 2 2* 9 +

D (" " # 5 ( 55 ' $(

5 " * 5 = " < + (" " 5

B " YC # 5 " 55 ' $$B000C(!

2 " 55 7 B C+ @9 " ( " 56 9 #

< (5 " ( 5 < *" 2 ("

= "" B C " "" 5 = " "

(12)

* " * = + I (& B -C ( 2 59

" 55 ' $(< " 5 "9 #* # E ""(

"# 5" " * ( 5 " 5 5 2

" 5 # # 5 " A + &"

(& B .C = < " A # #

"= < " + " **9 < " 5

# # (< 5" 5 ( ! ! " < "

# " 5 # A " ( " M * N

5 " < 5 " + & < ( "* = " 5 9 6E5 69 " 5

"# 2 BH C( 2 6E5 69 ( " = ! " 5 #

# # (5 ! 5 + " " ( 2 6E5 69

**9 < " 5 # # ( "# 5 (

! " "2 " 5 "( " +

#

#

2. Aspects méthodologiques

)

8 5 = "" " "# >71 " 5 000

+ & !"# "E " * " = " " 6 ""

# 5" 5 = " ( = "" = + D

2 " 5 = " 5 5

" 5 " 55 ' B3 "" 000C "" 55 7 B 5

C+ 5 < 5 9 56 "

# A B& ( -C+ ( "" !

2 # " = ( " = 5 " "

" +

8# 6 "" = " 5 + $" 5 *" " 2

< "# >71 " 5 00 (

< # 2 5 = 9 " + 8 " 5

" 5 " 5 # "# 6 "" + 8 = " 5 "

(13)

! " @ (" 9 3 "

@ ( " # 55 " + 8 <

" ( < " " = ! "#

B= 5 9 C( ! 55 ) 5 5 000( .

5 5 5 5 + @ 5" ( = " "

= " " 9 " " "

(X( 5 " 0.(X=+ 8# 6 "" " " < " "

9" 5 5 ( 5 /. 5 +

Z$ " [

8 * * B ( % C " < " " " 5 (

" 5 " " ( ! " " " "# 5

B DC " "2 5 "B ( 1:C ,

% \ D L 1: ⇔ D \ 1: ]%

D = " " " 2B% C 5 6 < " "

" = ,

% \∆71 ]∆ L∆& = W L @ L @ & =@ 5 (

= \ ! ( \ 000( ( ( ,

• ∆71 \= " " " = " = " #

" + 71 \B> G] " ] ] 6+ #= C L B1 ]@

" W " ] ]& #= C

• ∆ \= 6 * ! 5 ! "# "

• ∆& = W \= & = 5 < 6 * 5 "

• @ \@ 2 #25" 5 "

• @ & =@ 5 \ @ 2 & = 5 @ 5 " (

5 = " B " 7 L " D C+

@ 29 5 ( " ( # !

5 " " 5 " 5 " + I "#

< ( " 5 ! "# " =

B@ 6 F "+( 00 C 9" = " " B 00 C "

# = " D 1 ! 6 # 2

5 =+

1 "" ( = " 9" = 5 6 <

# = 3 ,

% 3\^ ]_ +$ :>3]` +∆B L 8$ D%>C3]a3(

(14)

)

= B = " E 5 " ^ 5 " " "#

#2 C ,

• % \% "

• $ :>\$ " 5 "" ] 6 * ! 5

• \ 6 #

• 8$ D%>\ " = " +

8 B ( @ C 5

" 2 6 < " 55

! "# 5 9 9" +

1 "" ( 5 6 < ( " ,

@ \% L Z^ ]_ +$ :> ]` +∆B L 8$ D%>C [(

8 " < 5 = *" " " = = "

# ( 2 +

Z$ " [

8 E 5 * =

R + ( D:' "" " =9" 5

* = +

'

"# > E B 00/C K 6 B )C( 55 "

5 " " " L "

" 2 5 "( " "

L " = " " 9 ,

% \β ]β 1: ]β @ ]β)D@ ]β-@ bc ]β c ]β/d 000]β.

d ]ε (1)

= ,

• % " " 9 " " 5 -

5 9 " "? 5

• 1: , " " 2 5 " B " L 2C 5

• @ , " 5

• D@ =, " 5 B% L @ C

• d 000Bd C , = " ?" " ( "# =

"# 000B C( +

c 5 " = " # = ,

• 7$ , = " 2 5 "

5 ! " (

• % , = " " # 2

5 5 !/ =

(15)

-

• , = " " 5" #

• $D@ , = " " 5" # 5

5" X 5 " * ( ! =

2 ( 5 5 ( " 55 =

" 6 +

8 β1, β2 β3 5 + 5 # 5 5

5 " β5+ 8 β2 "# "

" " 9 5 " = " # + 8

β2 β4 "# ; ( " < 5

5 " = " # + & " = " 7$ ( " S" " 5"

5 = = ! "# * " !" 5

" 5 " BH C( β4 * + 8 2

5 5 = !" ( A ( ; #" 2

= * * * #25 BH C( #= 5

5 #6E5 69 " * " = " % + 8 # ( < 5"

" < #" 5 ( E 5 ?" " 5 " < 5 "

5 ( " 5 = "# * " 2

+β4 * 5 " = " $D@ BH H C+

3. Résultats empiriques

' # *

8 " ) 5 " < 5 = " 5

" " 2( " " < 5 # 2 +

Z$ " )[

8 5 5 B7 * DC 5 E

" * = " 5 " 5 "

5 7 *D+ & ( " "2 5 "B 1:C( < 5 5

! " 5 5 " " " ( # 5 * =

" 2 6 "" + 8# 5 5 " " 2

6 "" #25"< 5 5 " 5 " ,

" 2 5 7 *D * B )(

5 "#6E5 69 "" ( 5 " 5 5 C * = 2

2 5 7 *D+ 6 = " "

1 "+ B000C( < < " < 5 " "=

(16)

5" 5 " * B7 * / " C( "

" " 6 5 " "= 2 = + $" 5 5 <

5 " 5 7 *D( " 2 * = (

* = " 5 7 *D( " < "

E ( ""( "*9 5 = + E " !" 6 5

< "< 5 " M 2 = 5 N+

8 5 7 * D 5 " *

B@ C "*9 5 ( * = 2

B] ( ] ( . E C+ (

5 5 < * + " * "

B!" 6 !" C( " 55 < " 5 7 *D 5

= " " B 7>@ C * = 5" "= <

" 5 7 *D+ < **9 < "

5 M* N *" " 5" 5 < " " 5 "

# + 8 " 1 "+ B000C K 6 B )C(

" 2 ( **9 * " < " * 5" =

" 6 2 5 " < " 5 + : ( " (

5 5 ! " 5 5 " 5 * " "

#= "" 5 " 55 5 ( "" 5 = ( !"#55 (

!" < " * " * < " + 5 !

"# 6 2 5 " 5 5 # = E * 2 25" 5

< #" 5 * 5 ( 5 "! ; ( !"# ""* " * 2+

8 "# 2 " 5 " * = "

5 5 5 !* " " 5 " + E ( 5 "

= " 5 " ( " " "2 5 "( <

"# " " 3 = ( * = " 2

6 "" + < 5 < "

" " 5 = " < " "# "#

5 "+ $" " # " 5 # 5 < 5

5" * " "" "# " ( 5 " 6 < " 5"

" " ( " * 5 ! " " <

= " 5"5 = 2 5 < B + * C+

(17)

/

8 " - 5 " < 5 = " 5

" " 2( " " 5 " < # 5

# +

Z$ " -[

D = # 5 " = # B 6 "" C

!"# " B 6 "" @C+ 8 E #

5 " 5 " E "= < " ( " ;

< " "2 5 " 5 < " 2

5 5 " + 8 5" " 5 5 " = #

#25"< ( 5 " 5 7 *D( 5 " < #"" 5

2 * # 5" 5" 5 < " + 8

= # 5 " * B@ C "*9

* * = ! 2 B ( ] ( /

E C+ : = ; * " < * 5

" = " " B 7> @ C+ 6 = "

" & B .C < < " 5 # # "

5 = " 5 5 5" 5 "9 " *

= ! * " " +

D = 5 " E # 5 B

6 "" 7C 5 = 2 # B 6 "" @C( 2

= # 5 B 6 "" C !"# "

B@ ] C+ : = " * < 5 "

5 = " # + &" 5 ( " 55 < "

# 5 " " 5" "= < 2 5 " 5 "

= # 5 B] ( .- ] ( - 5 " E C(

# 9 " * 5 * =

5 2 ! # 5 B] ( /

] ( C+ $ 5 " * " " B6 9

9 C( " # 5 * "

* = 5" "= < 2 ! # 5 B(

( / C+ # ( " 5" # # " 5 =

" " 5 < 5 " 5 ( 5 55 ( (

+ &" 5 ( " 5 " #

5 *" " 5" 5 < " 5 #

(18)

.

" 5 " # " + 8 < " ( " ( < #! 5

5 ="* " " 6 5 " ( " # ( " "*

# " 5" 5 ( " * 2 ! * <

+ '

@ " " ( 5 " " * " "

= " < " "# < = , = " 5

# B7$ C( " # B% C( " 5 #

# B C "# 5 # B $D@C+

Z$ " [

$ 5 5 # ( " = " 5 " "

5 " " * + &" 5 " 9 ( β 5 * "

X( < < " = 6 " 5 <

" 6 5 = " " + 8 5 B * C

5 A 5 " 6 B = C = "" " 5 "

; < " Bβ) * " 5

* " XC+

& < < "# 2 ( β- *

< 5 " = " 7$ B " XC * * ( !

6E5 69 + 8 β β- " "#

5 " 5 7 * ( " 55 < "

5 " 5 9 5 9 5" "

5 " 6 + : ( ; 5 " E

" = ( = " "* < " ( < " 5 7 *

B= " " )C+ " **9 5 9 < ( 2 = 2

5 > E B00/C( " 5 2 5 5 "

= 5 " = " # + @ 29 ( !

6E5 69 ( " < " < # 5 ( "

* " < #"" 5 5 " 55 5 " 6 < #

; * " 5 5 = * +

5 2 " K 6 B )C < ( 2O ( = <

"# = " " 9 5" 5

" 5 * + $" " < " ! 5"

(19)

5 5 " " " 5 " " < "

5 = + $" 5 " < " * #

5 9 "#25 " 5 = 5 2 = "" = ""

" " 5 ! 5 " 5 " 55 + 5

* " < #!; 5 = ( " 5 = " 5 5 " !

6 2( ! 25 5 " " 9 " +

@ 5 < ( " 5 " A = " " M "E N

5 * "+

8 < " "# " 5 "

* = " ( " 5

* " = 6 " 2 = 5 ( " 6 = "

< 5 " 6E5 69 6 < " 5 5 2

" 5 < B + * C+ " 5 " < ( 6 "" ( "

5 " 5 # 5 2 5 "#25

2 " 25" < ( 5 " ( " " * = " = "

% +

& < ?" 2 5 " " 6 5 " (

" 5" 5 # # " = " < #!" * "

" + 8 = " b@ * = (

* ( " β- # 5 * ! " <

B" 5 " < " " ( 5 " " (

)( XC+ $" 55 5 < " < " # 5 ( " 5

" = " 5 5" ! " "

+ 8 β- * ( * (

* " X 5 " = " $D@b@ + : ( = * "

< " # ( !"# # " 5" 5 ( ! "

5 5 ( 5 " 9 9 * !"

6 " + # 5 < * ! = < # 2 9

5 " " < " 6 5 " # 5 !" 5 6

5 " + ( !"#2 9 " 5" " 5

"#55" 9*" 5 " ( " # " 5 !

= 6 " 2 = ( 5 * < ( "# "

" = " +

(20)

0

D 5 "" < 0X 6 "" E #

* " 5 7 * B < 5 " " 2C+ &

"# " 5 = 2 "

( = " 9" * " = S" = " 7$

" B" " " * 5 " " /C ,

% \β ]β 1: ]β @ ]β)D@ ]β-7$ b@ ]β 7$

]β/ $D@ b@ ]β. $D@ ]β d 000 ]β0 d ]ε (2)

Z$ " /[

8 β- * * " X( * ! =

"# " * # " " +

= 6 ( " β/ * ( * ( " #

5 < * + ( " < # 5 "" 5

5 ( " # 5 # " 5 5 < "

" +# ( " 5 #

" "" " " 5 " < 5 " "# " = "

5 " 5 ( "# # (

" # ( #55 5 5 + " 9 !

* "# "" ( " 5 (

* = +

Conclusion

@ ( " < 6

5 " 5 " 5 " * A ( 5" 5 " 9 "# 5

= < " 5 # , 5

"# 2 ( ?" 2 5 # 5 + 8

5 5 " = "# = *" 2 5 "

= " 5 ( = = ! = " " "= " "

5" ? < 5 + @9 " ( " * " " 5 ( 5

" 2 ( 5 =" * = " 3 < 5" ? <

" < + $" < " < " " * # ( "

( = 5" ? " " < " 5 6 5 " + (

5 < " " 5 " 5 "

( *" " ( " < " 5 * # B7 *DC(

(21)

" < " # # # ( < # 5

3 # 5 + = 6 ( = # "

< " "# # B 5eC " * "" "# " (

6E5 69 "" < ! "# 5 " " "

" 6 5 " +

D " 5 < ( " 6 " * # (

< ( *" " ( " * " 5 " B C

5 # 55 2

7 *D( 5 # # 3 5 " " +

8 5" 5 # # ( 5 5 * # 5 ( #" 9 5

* = " 5

" < " < # 5 # 5 5 = 5 !

M N " " 2 " 5 " * ( 5 = < "

= 6 5 " + ( M " * N "" (

" 5 " 5 " 2 ( * "

* "# " 9 5

" 5 5 " +

D " L 5 " A L ! " "

"( " "# 5 $ >J$1 >( "

55 " " " 5 6 5 " + & " ( "

" < # 55" Z 2 = e[ 5 5 5 " !"# "

= 6 5 " + @ " " ( " "

= " $1 >( " 5 "( 5 5 5" ? <

9*" 5 "" ( = 5 2 2 * = ""

2 2 " 3* 5 " " " 5

+ M 5 N 2 = 5 5 = ""

2 " e

(22)

! )

K+ 8+( @ " @+ D+( "" >+ 8+ B )C M 7 @ ( 6 $

* N( P G *5 5 D + ) -( P * 5 = ( = E

@ " F ( 6 5,JJ + J \--- - +

7 G +( @ 1 +( "= +( > E K+ + B 00 C M %6 f " E *

* N( 5 E * 6 , -+

7 @+ B C M & "" * = 5 L 55 * 5 = " 5

5 @ " 7 N( @ = 5 1 B @ 1C W 1 A

5 & = B 1 & 1C( & +

7 F P + @+( H H+( % " K+ B /C M " = 6 ' " " = *

* , $ " > EN( 5 * = F ,/ / /+

7 E @+( 8 + H+ +( % >+ 8+ B -C M %6 $ " $ 5 =

* f " EN( P G *5 5 ( 6 5,JJ + J \- +

7 " +( 8 + +( P "" * + B -C M 5 " "E 5 *

F 6 " " N( " * )., )0 / +

6 + B 0 .C M : > " "E * 6 N( " *

0, ) +

@ * " 8+ + B 0 C M > R f " EN( " * )B C , )

00+

@ 6 F &+ + B 00-C M * * 61" F 1 & ,%6 "

* " N( " * ,) - +

@ 6 F + +( >" + +( >F E + &+ B 00 C M @ * * * N( %6 *

= F . B C , 0) +

@ 1 + 8+( "= + B 00)C M 1 " " @ * = $ $ *

* 6 N( 5 E * 60,- -) +

@ &+ B )C M 8 5 " 5 " " < " "# < 2

= N( = )0B1 = C ,/ .)+

1 ( + +( K 6 ( + B 000C M * " 5 * = N( 5 E

* 6 / , ) //+

1 ( + +( E F + 8+( >5 G H+ + B 000C M %6 " 7 */ 6 " 5 *

" N( *, " & %6 E , .)-+

1 G " + +( 6 + 1+( D " K+ K+ B C M %6 " F #1 D

> = * * N( %6 * = F ..B> 55" C ,. +

E P + &+( K 6 >+ &+( P + 8+ B 00/C M G 7 = " @ E "

" N( " * 6)-B> 55" C , ) +

E P +( ' 6 + B /C M @ 1 F G = = *

7 6 & G N( " * - , -0 / +

6 6 +( @+ B C M % & 5 f " EN( %6 * = F

B C , / +

H "E&+ +( P 6" + + B 000C M = F 6 * * 8 $ 5"

> > *N( *H R )B-C ,)/ ) )+

H "E &+( & " 5 K+ + B 00)C M %6 1 # 1 " @ " & " > G 5 N(

*H R ., +

H " 6 + P + B 00 C M * 6 6 ,:55 7 6 = ( *

$ & 5 = N( " * , . +

+ B C M 8 " 5 " " 2

" 2 A N( 5 " L ?" L B C ,/0 +

6 '+ +( K6 $+ K+( E " + K+ B C M 1 % 6 f " E 1 "

5 N( 5 E * 6 0B-C ,/).// +

(23)

+ B 00 C M * * @ * $ 5 " $ = * N( " *

6 0B C , 0) +

K + 7+( 6 * +( 1 6 + B )C M = ( E * *

* N( 5 E * 6 B C ,) ) ) 0+

K" ( 7+ +( 8 " ( K+ B 0 C M %6 " G 1 * " & N( "

& " " E 0B-C,/ /- +

K 55 + + B 00 C M 1 6 > * f " EN( *,

" & %6 E B C ,) +

K 6 >+ &+ B 00 C M & * * 6 & & 8 * * , * 8 = "

' 6 * >5 " = @ " N( " * , .) +

K 6 + &+ B )C M f " E 6 & * @ E " N( *, "

& %6 E B C , 0 /+

8 + P +( 8 + 1+( d * + >+ B /C M %6 & * f " EN(

* " * " B0C ,0 0))+

K+( P "" @+ @+ B -C M 1 & " " N( %6 *

= F .0, 0 +

E + D+( E 8+ +( : %+ + B )C M 25" * 6 % 6 " " 65 6

f " E * , E eN( %6 * = F . B)C ,..0.00+

D *E + 8+ B C M E 1 % = ( 1 " 5 * f " E( " 7 * *

& F ,%6 6 N( *H R 0B C , / +

: + B /C+ & < $1 > , 5 = " 9*" A " > &( @ +

& >+ %+ B .C M %6 5 = 6 $ = * N(

= ( 6 *+

& + B -C M %6 2 $ 5 1 N( * 7

6 )-B)C , ) -/+

& +( + B .C M 2 " ( * * 1 N(

5 * = F /B C ,- 0- -+

E " + K+( @ @+ +( 1 + + B -C M & " > = 1 : 3 = EN(

*, " & %6 E )B C , 0 +

> E K+ + B 00/C M %6 & * @ E " N( " *

, -0 +

% 6 >+ H+( P * %+ + B 00)C M & = f " E 6 * 5 N( %6

* = F / B C ,)-/ )//+

' + B 00 C( M 8 " # N( @ 1 A

5 & = B 1 &C W " D " & 1 A B D&1C( 3 "" ( & +

' + B 000C( M 55 " * = # 5 5 5 + ' N(

@ 1 A 5 & = B 1 &C W = 5 1

B @ 1C( 3 "" ( & +

P + 8+( Q + 8+ B 0 /C+ & = *%6 E( *" F " ( D+ + ,& H ""+

P + 8+( Q + 8+ B 00 C M & = *%6 E, % d & 5 = N( %6 *

= F / , ) /+

P +( %6 @+ 7+ B -C M * f " E " = + & 5" 7 *> ,

% 6 >G HE5 6 N( P G *5 5 f # = E+

P " + + B 00-C M * " " E >6 6 " , 6 25" E& F

* N( 7 6 * = F / ,) ) ).-+

P " + + B 00/C M %6 * f " EN( " *( * 1

B C , -. ./+

(24)

)

+ ( )

O 5 " 5 # "# 6 "" = " D

8 >71 #5 9 FFF+ + . /

, , 9 ( # ( # = )

, , 9 " 9

( , B6 C "# 00

5 " 5 )

, , " 5 5 B ( C

9 5 " ! 55 " 5 " 2 000

, , 5 " 5 5 "

@$ D /

, , 6 " ! # = -

+ , . / # * 0111& -- 2

# D E O

E5 2 D ""

B C

@ +

""

B C

% 0) ( ()) ( - () (. (. bb (.

@g% / ( ( ()/ ()) ( (/ 0bb (/0.

@g% / ( / (- ( ( ( (

% * " 2 B C+8 5 2 @g < " 5

* +8 5 2 @g * " = " " +

b(bb( bbb * 5 " < " " ! ( ( ( ( 5 = +

(25)

-

+ ' / # * #

3 4

E E $

D ( (-) (.- (.- (.0 (-0

bbb bbb

% () ()/ ( ) ( (/ (/

bb

7>% (.) ( ) (0- (/ (.. ( )

1: ( ) ( - (. ( - ( (

@ ( ( . ( . ( / (.0 (0/)

b

D@ (- () ( ) () (0-/ (-

7>@ (/0 (- ( (/. (0.) (-)

bb bb

% 0+2 4

E E $

D (-/ (- ( ( ) (0 / (-0-

b

% ( ( - (- (- (0 (

7>% (./ ( (. (- () ()))

1: (// (/) (0. ( (/ (0.0

b bb

@ ( ( ( / ( - (.0 (- .

D@ ()0 () ( (-) () ( -

b

7>@ (.. (- (./ (- ( . (

7 *D B \ C B \) C

% h/ B \ .C % i/ B \-.C

D * " " (% " 2( 7>% " 2 = " " ( 1: " "2

5 "( @ " ( D@ " ( 7> @ "

= " " +

, 5 " 5 E 2 6 "" 5 B * 5 "#6 * "

= " 6 C+

$ ," 5 < % 5 "#6E5 69 "" #6 * +

b(bb bbb * 5 " < " " ! X( X X 5 = +

(26)

+ 5 / # * #

E E E E E $ $ $ $

D (-. (- (- (-- (/) ( ) (.- (/ (-0 () )( )( ( - () )( (.0. (). (..

bbb bbb bbb b bbb bbb

% (- (- () ()- ( ( ( ( - (/ ( (. 0 (/ ()- ( ) ( (-) (- (0-

bbb bb bb b b b

% 7> (.. ( . (.) ( ) ( ( (.. (- ( ) (/ ( (. (-0 (). (. ()) (/- (-/0

1: (0 ( / (. ( ( / ( . (// ( - ( ( ) ( (- (- ( ()0 (-. ()00 (0/

b b

@ ( ( ( ( ) ( - ( . (/ ( ) ( ( ( (0. (.. (0 ( (- - (0 (///

bbb bbb bbb bbb b

D@ () () (- () (-/ ()/ ( - ()/ ()/ ()0 (-)- (-) ( 0 (. (0 (-/ ()./ (-)

b b b

7>g@ (/. (- (/ () ( 0 (-- ( ( ) (.) (- (. ()- (0 (--/ (- (/)) (. 0 (.-

bbb b bb b bbb b

7+= @+ 7+= +

+ j

5

+= @+ 7+= + +& j

j

7+ j

5

+&

j 5

@+&

j

B \)0C B \ /C

B \ C B \ 0C B \ C

D * " " (% " 2( 7>% " 2 = " " ( 1: " "2 5 "(@ " (D@ "

( 7>@ " = " " +

, 5 " 5 E 2 6 "" 5 B * 5 "#6 * " = " 6 C+

$ ," 5 < % 5 "#6E5 69 "" #6 * + b(bb bbb * 5 " < " " ! X( X X 5 = +

(27)

/

+ 6 3

# 0" 7 6

& 2

% \β ] β 1: ]β @ ]β)D@ ]β-c b@ c ]β/d 000]β.d

c \ 7 * c \ % c \ c \ $D@

+ + + +

( -(--. bbb (. )()00 bbb (- -(. ) bbb () () bbb 1: B]C (.. -(0)0 bbb (0)- -(0 bbb ( -(0 bbb (- -( 0 bbb

@ B]C )(0- ())/ bbb )(00 -(/. bbb )( ) -( bbb ( -(- bbb D@ B]C (0/. -(- . bbb )() . -() bbb (. )( - bbb (/ )(/ - bbb

cb@ BC (00 (- . bb (. () ( ) ( (/)) (/ b

c e () ( ) (-0 (0 ) (-. (0/ (/ ()

d 000 e (0 )( bbb ( )( / bbb ( / )(). bbb ( ) )(- . bbb

d e ( 0 ( - (-0 (. ( . ( / ( (0-

1: * " "2 5 "(@ " (D@ "

(7$ ,= " 2 5 "

5 ! " ( (% ,= " " #

5 !/ ( ,= " " 5" #

( $D@ ,= " " # 5 # X

5 +

b(bb bbb * 5 " < " " ! X( X X 5 =

B " " 5 cb@ C+

+ 8 3

0" 7 56 & 2

1: @ D@ 7$ b@ 7$ $D@b@ $D@ d 000 d

B]C B]C B]C BC e BC e e e

+ (- ( 0 )(. . (./ (. ( ()/ ( . ( (

-( ) -(- 0 -()) )(0 - (./ (). (. () )(. (0 .

bbb bbb bbb bbb bb bbb

1: * " " 2 5 "(@ " (D@ "

(7$ ,= " 2 5 "

5 ! " ( ( $D@ ,= " " # 5 # X

5 +

b(bb bbb * 5 " < " " ! X( X X 5 = +

(28)

.

" " * : B -C(M ; "#$ >7 9 < " 5 "

5 = ; " ! " 5 " = "# 5 (" " < #

5 = " = 5 = " * N+ & " (" < "

5 " "#$ >7 " " = 5 " " " " 5 " #

5 +

' 7 G "+ B00 C(7 " "+ B -C( P "" B -C+

8 9 *" 5 < 5 (

* = # + I #2 5" (" # < ! " " = ( "

2 = ; * 5 " 7 +

=I #2 5" (@ 6 F B00-C 2 " 6 "" (" 5 " " 2 5 " " " "! 009 " +

= #55 " " " 25 "9 (

= * " 55" < 2 55 6 9" ,"#55 6 "" " =

! 6 " 9" 5 "# " 2 5 "( * = "

= "# ; 5 9 +

= 8 = " 5 " B 1:(@ (D@ C 5 " 5 +

6 B0 .C K 6 B00 C < " " = " 5 " 5 " 5 2

5 " " 5 9" "# 5 "#6

+

= = 2 5 < *" 2 B 6 "+( D *E( C< " M" * N

"" 5 !6 + @ " A ( S"

5 2 2 ( = " " " ( 5 " M" * N

"" 5 ! 2 + ( " 5 = "" < (

"# M N+

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