n4 lsm2f- - 京都大学 大学院経済学研究科・経済学部...
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![Page 1: N4 Lsm2f- - 京都大学 大学院経済学研究科・経済学部 ...ida/4Hoka/BB/BB4choice.pdfg(random utility theory, RUT) s H q } 2t >Yzb# [ _I H(representative utility)t >Yzb#](https://reader031.vdocuments.pub/reader031/viewer/2022021817/5a9eca637f8b9a67178be003/html5/thumbnails/1.jpg)
1
9/25/2006
4
1920 1970 2000
(D. McFadden) (J. Heckman)
J.J. Louviere, D.A. Hensher, and J. Swait (2000) Stated Choice Methods,
Cambridge University Press.
K. Train (2003) Discrete Choice Methods with Simulation, Cambridge University
Press.
D.A. Hensher, J.M. Rose, and W.H. Greene (2005) Applied Choice Analysis,
Cambridge University Press.
( )
4.1 (RUT)
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2
(Louviere et al.
2000 Ch.3 Train 2003 Ch.2 Hensher et al. 2005 Ch.3 )
(discrete choice)
(choice set)
(mutually exclusive)
(exhaustive)
(definite)
1
ADSL CATV
FTTH ADSL CATV FTTH1
(utility)
(random utility theory, RUT) 2
(representative utility)
(random component)
RUT n i
j i i j
n J n j
, 1...nj
U j J= n i i
j ( ,ni nj
U U i j> )
njx
ns
1 ADSL CATV
ADSL CATV
LANLAN
2 RUT Thurstone (1927) Marshack (1960)
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3
( , )nj nj n
V V x s=nj
nj nj njU V= +
n=<
n1,...,
nJ> ( )nf
n i
Pr( )
Pr( )
Pr( )
( ) ( ) ,
ni ni nj
ni ni nj nj
nj ni ni nj
nj ni ni nj n n
P U U
V V
V V
I V V f d j i
= >
= + > +
= <
= <
(4.1)
(Train 2003 pp.18-19 ) ( )I i 1
0
RUT
1
K
nj j kj knjkV x
== + (4.2)
knjx jj kj
jk
(RUT)
4.1.1 RUT
RUT ADSL FTTH
(PRICE) (SPEED) ADSL FTTH
1 2
1 2
ADSL ADSL ADSL ADSL ADSL ADSL
FTTH FTTH FTTH FTTH FTTH FTTH
V PRICE SPEED
V PRICE SPEED
= + +
= + + (4.3)
FTTHFTTH FTTH ADSL ADSL
V V+ > +
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4
Pr( )FTTH FTTH FTTH ADSL ADSL
P V V= + > + (4.4)
ADSLADSL
P
4.2 (CL)
(conditional logit,
CL) (Louviere et al. 2000 Ch.3 Train 2003 Ch.3 Hensher et al.
2005 Ch.10,11 )3
CL (independently and
identically distributed, IID) IID
IID
(independence of irrelevant alternative, IIA) 4
CLnj
IID (extreme value, EV)
nj
( )nj
nj e
njf e e= , ( )nje
njF e= (4.5)
EVnj ni
=
( ) /(1 )F e e= + (4.6)
CL ( CL )
( ) ( ) ,ni
nj
V
ni nj ni ni nj V
j
eP I V V f d j i
e= < = (4.7)
CL
1
1
,
K xj knjk kj
K xj knjk kj
ni
j
eP j i
e
+=
+=
= (4.8)
3 CL (multinomial logit MNL) 4 IIA Luce (1959) IIA RUT
Marshak (1960)Luce and Suppes (1965)
McFadden (1974)
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5
(Train 2003 pp.38-40 )
(CL)
(CL) CL
IID
IID IIA
4.2.1( ) IIA
CL IIA
(Hausman and McFadden 1984 ) IIA
IIA
/
/
njnini
ni nk
nj nknk
VVV
j V Vni
V VVnk j
e eP ee
P ee e= = = (4.9)
i k i k
IIA
IIA (Hausman test)
IIA
CLu u
V
CLr r
V
1
[ ]'[ ] [ ]u r r u u r
V V
( 2 )
5% 2
2 IIA
IIA IID
4.2.2( ) CL
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6
CL ( CL )
1% (%)
(Train 2003 pp.63-64 )
CL (own-elasticity) i
1% i i k
n ini
P
/(1 )
/ni
kni
P ni ni ni
x kni ni
kni kni kni
P P VE x P
x x x= = (4.10)
(1 )ki kni nix P= (
1
K
ni ki knikV x
== )
CL (cross-elasticity) j 1%
i j k n i
niP
/
/
ni
knj
njP ni nix knj nj
knj knj knj
VP PE x P
x x x= = (4.11)
kj knj njx P= (1
K
nj kj knjkV x
== )
CL j i
j CL j i
CL IID IIA
4.2.3( ) (MLE)
CL (maximum likelihood estimation, MLE)
MLE
(Louviere et al. 2000 p.43 )
RUT n j j U
nj
i U
ni
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7
CL j U
nji
U
ni
MLE n j ( ) njI
j njP
1nj
I = n j 1 0
N j (likelihood function)
( ) ( ) , 1... , 1...njI
n j njL P n N j J= = = (4.12)
(log-likelihood function)
( ) ln , 1... , 1...n j nj nj
LL I P n N j J= = = (4.13)
( ) / 0dLL d = (4.14)
(Train 2003 pp.64-65 )
4.2.4( ) ( )
( R2 )
MLE
( )LL (0)LL
( )1
(0)
LL
LL= (4.15)
0-1
0.25
5 MLE 2
R
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8
4.2.5 CL
CL
ADSL CATV FTTH
4.1(a)
IIA
ADSL CATV FTTH 3 1 1 CATV
ADSL FTTH 3 1
75% 25%
4.1
4.1(b) ( )LL (0)LL
=0.33 2R
0.6 t
ADSL FTTH
MLE t
t t
t 1.96 5%
t ADSL
FTTH 6
4.1(c)
ADSL -0.96 CATV
-2.56 FTTH -3.2
1 ADSL
CATV FTTH
[ 0.1, 0.2, 0.3, 0.4, 0.5]= 2R [0.3, 0.5, 0.6, 0.8, 0.9]
(Domenich and McFadden 1975 ) 6 (willingness to pay, WTP)
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9
ADSL CATV FTTH
1.44 CL IID
WTP 4.1(d)
1Mbps
1Mbps WTP 0.02/0.0008=25
4.2.6 CL
CL IID IIA
IID
CL
(taste variation) CL
(substitution pattern) CL
(serial correlation) CL
CL IID
(Train 2003 p.46 )
4.3 (NL)
CL (nested logit,
NL) (Louviere et al. 2000 Ch.6 Train 2003 Ch.4 Hensher et al.
2005 Ch.13,14 )7
7 CL IID (generalized extreme value,
GEV) GEV EV
NL GEV
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10
8 NL
NL IID
IID CL
NL IIA
NL
(independence of irrelevant nests, IIN) NL
(inclusive value, IV)
ISDN ADSL CATV
FTTH FTTH
( ) FTTH ADSL
( )
ISDN ADSL
CATV FTTH
ADSL CATV FTTH
NL9
NL 10 j K
1, ,
KB B NL
1,...,
nj n nJ=< >
/
( )
( ) , 1...nj k k
k j Bke
njF e k K= = (4.16)
kk ,nj nm kB
8 NL
9 (Cameron 1982 )
NL (1)
(2)IV (3)
(Louviere et al. 2000 ) 10 NL Daly and Zachary (1978) McFadden (1978) Williams
(1977)
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11
nj nm k
IV11 1
NL (RU) 2 (Louviere et
al. 2000 pp.165-167 )
1(RU1)
2(RU2)
RU1 RU2 RU2
RUT RU2
(Hund 1998 )
NL ( NL )
// 1
/
1
( )
( )
nj kni k k
k
nj k l
l
VV
j B
ni VK
l j B
e eP
e=
= (4.17)
(Train 2003 pp.83-84 )
NL CL
2 4
(full information maximum likelihood FIML)12
(NL)
CL IID (NL)
NL
IID
4.3.1( ) NL
NL (4.17) NL
11 RUT IV 0-1 12
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12
nk
B j
nkW
njY
,nj nk nj nj kU W Y j B= + + (4.18)
NL
|k k
ni ni B nBP P P= (4.19)
/
| /
ni k
k nj k
k
Y
ni B Y
j B
eP
e= ,
1
nk k nk
k nl l nl
W IV
nB W IVK
l
eP
e
+
+
=
= , /
lnnj k
k
Y
nk j BIV e=
(Train 2003 pp.85-87 )ni
P
|k
ni BP n
kB i
knB
P n
kB
k nkIV n
kB
nkIV
kIV
4.3.2( ) NL
NL ( NL ) NL
CL
NL
|
1[(1 ) ( 1)(1 )] ,ni
ni i k
P
x n ni B ni k
k
E P P x i B= + (4.20)
|
1[ ( 1) ] , ,ni
nj j k
P
x n nj B nj k
k
E P P x i j B= + (4.21)
1k
CL NL
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13
131
k= CL NL
4.3.3 NL
NL
ADSL CATV FTTH
NL IIA
CL ADSL CATV FTTH
3 1 1 CATV IIA
ADSL FTTH 3 1
CATV ADSL ADSL FTTH
4 1 ADSL CATV
FTTH CATV
CL 2 2
5% 5.99 IIA14
IIA CL
ADSL CATV FTTH
ADSL CATV NL
4.2(b) NL 4.1(b) CL
0.40
CL t
IV IV 0-1 t
4.2(c) NL
(ADSL CATV )
(FTTH) 15
13
14
2 15 FTTH ADSL CATV
IIN
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14
4.2
4.3.4( ) HEV
GEV (heteroscedastic
extreme value, HEV) HEV16 HEV
NL IIN HEV IIA
HEV
( ) / / /[ ] ( / )
V Vni nj ni j ni ini ie e
ni j i ni iP e e e d+
= (4.22)
(Train 2003 p.96 ) (closed form)
HEV
4.4 (ML)
CL (mixed logit, ML)
(Louviere et al. 2000 Ch.6 Train 2003 Ch.5,6 Hensher et al. 2005
Ch.15,16 ) ML
ML (random parameter)17
ML ( )f ( )f18 n
i
16 Allenby and Ginter (1995) Bhat (1995) Hensher (1997a, 1998a, b)
17 ML Train et al. (1987a) Ben-Akiva et al. (1993)
ML
Bhat (1998a) Brownstone and Train (1999) Erden (1996)
Revelt and Train (1998) Bhat (2000) 18
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15
( )
( )
1
( )ni
nj
V
ni J V
j
eL
e=
= (4.23)
ML
( ML ) ( )f ( )ni
L
ML
( ) ( )ni niP L f d= (4.24)
(Train 2003 p.138 )
1 0 ML
NL EV
1'
K
n nj nk jkkx dμ μ
== 1jkd = k 1
0nk
μ (0, )k
N
k
jkd
(Ben-Akiva et al. 2001 )
ML ( ML ) ( )f
j k 1% i
( )( )[ ] ( )
knj
ni nix k nj
ni
LE L f d
P= (4.25)
(Train 2003 p.145 ) ML
ML
(Revelt and Train 2000
) n yn
h( | yn ) =P(yn | ) f ( )
P(yn | ) f ( )d (4.26)
(ML)
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16
CL (ML) ML
IID
4.4.1( )
ML ML
( | )f ML
(Train 2003 p.148 )
( | )f R ( , 1...r
r R= )
r ( )
niL
( )ni
L1
1ˆ ( )R r
ni nirP L
R=
=
ˆni
P ML R
(simulated log likelihood,
SLL)1 1
ˆlnN J
nj nin jd P
= =n j
1njd = 0 (maximum simulated
likelihood, MSL) SLL
(random draw)
(Train 2003 p.208 )
5 10 1000
100 (Louviere et al. 2000 )
(Train 2003 p.224
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17
) 3 0-1 1/3 2/3
1/9 4/9 7/9 2/9 5/9 8/9
100 MSL 1000
MSL (Bhat 2001 )19
4.4.2 ML
ML
ADSL CATV FTTH
ML
MSL
ADSL CATV
ADSL CATV NL
WTP20
4.3(b)
ADSL CATV 1
0.7 8% 92%
0.02
0.015 5% 95%21
19 (anomaly)
( Train 2003 ) 20 WTP
21
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ML 4.3(c) ML
ADSL CATV
ADSL CATV
4.3
4.4.3( )
ML CL
(multinomial probit, MNP) 22
1, ,
n n nj=< > J
11
'2
/ 2 1/ 2
1( )
(2 ) | |
n n
n Je= (4.27)
MNP ( MNP )
( ) ( )ni ni ni nj nj n nP I V V d= + > + (4.28)
(Train 2003 pp.101-102 ) MNP (J-1)
MNP
ML
(Louviere et al. 2000 pp.199-204
)23
4.5 RP SP
2
(Louviere et al. 2000 Ch.8,9 Train 2003 Ch.7
22 Thurstone (1927)
MNP Hausman and Wise (1978) Daganzo (1979)Ben-Akiva and Bolduc (1996) Revelt and Train (1998) Bhat
(1997a) McFadden and Train (1996) Brownstone, Bunch and Train (1998)
23 ML (Cholesky)L A A=LL’
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19
Hensher et al. 2005 Ch.4.6 ) (revealed preference, RP)
(stated
preference, SP)
RP RP
RUT RP
RP
RP
RP
RP (Louviere et al. 2000 pp.23-24 )
RP
RP
RP
RP
RP
RP
RP RP
RP
RP
SP RP
SP SP
SP (Louviere et al. 2000 pp.23-24 )
SP
SP
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20
SP (label)
SP
SP
SP
RP SP
RP SP
RP
SP RP
SP
RP SP
RP SP
RP
SP
4.5.1( ) RP SP
RP SP RP
SP
RP SP24
RP SP
RP SP
(Louviere et al. 2000 pp.244 )
RP SP CL
LL(RP) LL(SP)
RP SP CL 24 Morikawa (1989) Ben-Akiva and Morikawa (1990)Ben-Akiva, Morikawa and Shiroishi (1991)
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21
LL(RP+SP)
RP SP
(RP SP
= ) 2[( ( ) ( )) ( )]LL RP LL SP LL RP SP+ +
2
4.1 RP CL LL(RP) -1000
SP CL
LL(SP)=-900 RP SP
CL LL(RP+SP) -1896
8 4 2
5% 9.49 RP SP
RP SP
4.6
SP SP
(conjoint) (Louviere et al. 2000 Ch.4,5,7
Hensher et al. 2005 Ch.4,5,6 )
(experimental design)
(profile)
(Hensher
et al. 2005 Figure 5.1 )
1. (problem refinements)
2. (stimuli refinements)
(alternative identification)
(attributes identification)
(attributes level identification)
3. (experimental design consideration)
(types of design)
(model specification)
(reducing experimental size)
4. (generate experimental design)
5. (allocate attributes to design columns)
(main effects vs. interactive effects)
6. (generate choice sets)
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22
7. (randomize choice sets)
8. (construct survey instrument)
3
(full factorial design)
2
(L) (M) (H) 3
[ , ] 9
[L,L] [L,M] [L,H] [M,L] [M,M] [M,H] [H,L] [H,M] [H,H]
(code)
2
(design code) L=0 M=1 H=2
(orthogonal code) L=-1
M=0 H=1
4.4
4.4
1 2
ADSL FTTH
4.5
4.5
(main effects) ( )
(interaction effects)
( )
70-90%
(Dawes
and Corrigan 1974 )
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SP
4.6.1( )
32
(Carson et al. 1994 )
L M A
LMA LA
2 2
3 32*2=81
32=9
(orthogonality)
(orthogonal factorial design)
(Hensher et
al. 2005 pp.112-116 )
4.6.2( )
2 2
( ) 4
5
MA+1 A+1
4.7
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CL CL
CL IID
IIA
IID NL NL
NL
IID ML ML
ML
RP SP RP
SP
RP SP
SP
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(0)LL
( )LL
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( )LL
(0)LL
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( )LL
(0)LL
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