ANNEXES
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE
DANS L'UEMOA
Annexe 1: Tests économétriques
Test de Fischer
. xtreg rem2 dav dat txt exp dummy,fe
Fixed-effects (within) regression Number of obs =
196
Group variable: code Number of groups =
7
R-sq: within = 0.5880 Obs per group: min =
28
between = 0.0777 avg = 28.0
overall = 0.4223 max = 28
F(5,184) = 52.52
corr(u_i, Xb) = -0.2447 Prob >
F = 0.0000
Coef. Std. Err. t P>|t| [95% Conf. Interval]
rem2
dav dat txt exp
.0425635 .0146717 2.90 0.004 .013617 .07151
.2799292 .0305356 9.17 0.000 .2196843 .3401742
dummy
_cons
.06672601
.06841039
.48753764 (fraction of variance due to u_i)
sigma_u
sigma_e
rho
F test that all u_i=0: F(6, 184) = 17.09
Prob > F = 0.0000
Réalisé par OUONOGO Souleymane
58
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE
DANS L'UEMOA
Test de Breusch et Pagan (LM-test) : le modèle
à effets aléatoires
. xtreg rem2 dav dat txt exp dummy,re
Random-effects GLS regression Number of obs =
196
Group variable: code Number of groups =
7
R-sq: within = 0.5868 Obs per group: min =
28
between = 0.1098 avg = 28.0
overall = 0.4639 max = 28
Wald chi2(5) = 262.74
corr(u_i, X) = 0 (assumed) Prob >
chi2 = 0.0000
![](Analyse-des-determinants-de-la-sur-liquidite-bancaire-dans-l-UEMOA10.png)
Coef. Std. Err. z P>|z| [95% Conf. Interval]
-1.23e-07 9.59e-08 -1.28 0.199 -3.11e-07 6.48e-08
1.63e-07 9.94e-08 1.64 0.101 -3.17e-08 3.58e-07
-.2410555 .0229031 -10.52 0.000 -.2859448 -.1961662
-.0000162 .000013 -1.25 0.211 -.0000417 9.21e-06
.0412391 .014601 2.82 0.005 .0126218 .0698565
.2678552 .0371942 7.20 0.000 .1949559 .3407545
dav
sigma_u
dat
sigma_e
.06292411
.06841039
.45829941 (fraction of variance due to u_i)
txt
exp
dummy
rem2
_cons
Breusch and Pagan Lagrangianmultiplier test for randomeffects
rem2[code,t] = Xb + u[code] + e[code,t]
rho
Estimated results:
| Varsd = sqrt(Var)
+ rem2 | 0, 0138854 0, 1178363
e | 0,00468 0,0684104
u | 0,0039594 0,0629241
Test: Var(u) = 0 chibar2(01) = 250,82 Prob> chibar2 =
0,0000
Réalisé par OUONOGO Souleymane
59
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE DANS
L'UEMOA
Test d'Hausman
Coefficients
(b) (B) (b-B) sqrt(diag(V_b-V_B))
eq1 .
Difference S.E.
dav
dat
txt
exp
dummy
-1.07e-07 -1.23e-07 1.67e-08 1.51e-08
1.57e-07 1.63e-07 -6.41e-09 1.30e-08
-.2455846 -.2410555 -.004529 .0047355
-.0000271 -.0000162 -.0000108 8.54e-06
.0425635 .0412391 .0013244 .0014394
b = consistent under Ho and Ha; obtained from
xtreg B = inconsistent under Ha, efficient under Ho;
obtained from xtreg
Test: Ho: difference in coefficients not systematic
chi2(3) = (b-B)'[(V_b-V_B)A(-1)](b-B)
= 2.20
Prob>chi2 = 0.5324
Réalisé par OUONOGO Souleymane 60
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE
DANS L'UEMOA
Test
d'hétéroscédasticité
. xtgls rem2 dav dat txt exp dummy,panel
(hetero)
Cross-sectional time-series FGLS regression
Coefficients: generalized least squares
Panels: heteroskedastic
Correlation: no autocorrelation
Estimated covariances =
Estimated autocorrelations =
|
7
0
6
|
Number of obs
Number of groups
Wald chi2(5)
Prob > chi2
|
=
=
|
|
|
|
|
z
|
|
=
|
|
-2.44e-07
|
8.63e-08
|
-2.82
|
0.005
|
-4.13e-07
|
|
rem2
|
Coef.
2.48e-07
|
Std. Err.
8.94e-08
|
2.78
|
P>|z|
0.005
|
7.31e-08
|
|
|
-.2030084
|
.0251287
|
-8.08
|
0.000
|
-.2522596
|
|
dav
|
6.38e-06
|
6.56e-06
|
0.97
|
0.331
|
-6.48e-06
|
|
dat
|
.0473158
|
.0164051
|
2.88
|
0.004
|
.0151623
|
|
txt
exp
|
.2159936
|
.0287288
|
7.52
|
0.000
|
.1596863
|
|
172.77
0.0000
[95% Conf. Interval]
-7.46e-08
4.23e-07
-.1537571
.0000192
.0794693
.272301
Réalisé par OUONOGO Souleymane
61
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE DANS
L'UEMOA
Test de RAMSEY des erreurs
. quietly reg rem2 dav dat txt exp dummy,robust
. ovtest
Ramsey RESET test using powers of the fitted values of
rem2
Ho: model has no omitted variables
F(3, 187) = 5.84
Prob > F = 0.0008
Réalisé par OUONOGO Souleymane 62
Réalisé par OUONOGO Souleymane
63
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE
DANS L'UEMOA
Test d'autocorrélation des erreurs
. xtregar rem2 dav dat txt exp dummy,fe lbi
FE (within) regression with AR(1) disturbances Number of
obs = 189
Group variable: code Number of groups =
7
|
|
R-sq: within = 0.3153
between = 0.3498
|
|
overall = 0.4269
|
|
corr(u_i, Xb) = 0.0554
|
|
|
|
-9.98e-08
|
|
rem2
|
Coef.
1.32e-07
|
|
|
-.1511343
|
|
dav
|
3.65e-07
|
|
dat
|
.0825436
|
|
txt
|
.1467485
|
|
exp
dummy
|
|
|
_cons
|
|
|
|
|
|
rho_ar
|
.62140122
|
|
Obs per group: min = 27
avg = 27.0
max = 27
F(5,177) = 16.30
Prob > F = 0.0000
Std. Err. t P>|t| [95% Conf. Interval]
7.20e-08 -1.39 0.168 -2.42e-07 4.24e-08
8.07e-08 1.64 0.103 -2.68e-08 2.92e-07
.0272805 -5.54 0.000 -.2049712 -.0972973
.0000246 0.01 0.988 -.0000483 .000049
.0189599 4.35 0.000 .0451271 .1199601
.0093105 15.76 0.000 .1283745 .1651224
.77584666
sigma_u
.05690094
sigma_e
.04441432
(fraction of variance because of u_i)
F test that all u_i=0: F(6,177) = 2.65 Prob
> F = 0.0174
rho_fov
modified Bhargava et al. Durbin-Watson =
.52853967
.
Baltagi-Wu LBI = .64533895
Réalisé par OUONOGO Souleymane
64
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE
DANS L'UEMOA
Test d'endogénéité :
|
(b)
eq1
|
(B)
|
(b-B)
Difference
|
|
|
-2.41e-07
|
-2.41e-07
|
-5.88e-21
|
|
|
2.32e-07
|
2.32e-07
|
6.75e-21
|
|
|
-.2541704
|
-.2541704
|
1.11e-16
|
|
|
7.21e-06
|
7.21e-06
|
|
|
|
.0382232
|
Coefficients
.0382232
|
2.29e-16
|
|
.
sqrt(diag(V_b-V_B))
S.E.
1.45e-14
1.40e-14
6.59e-10
.
0
b = consistent under Ho and Ha; obtained from
ivreg
dav
dat
txt
exp
dummy
B = inconsistent under Ha, efficient under Ho;
obtained from regress
Test: Ho: difference in coefficients not systematic
-1.56e-19
chi2(3) = (b-B)'[(V_b-V_B)A(-1)](b-B)
0.00
Prob>chi2 = 1.0000
(V_b-V_B is not positive definite)
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE DANS
L'UEMOA
Estimation du Modèle par les Moindre Carrés
Généralisés
Cross-sectional time-series FGLS regression
Coefficients: generalized least squares
Panels: heteroskedastic
Correlation: no autocorrelation
Estimated covariances = 7
Estimated autocorrelations = 0
Estimated coefficients = 6
Number of obs
|
|
Number of groups
|
|
|
=
|
Wald chi2(5)
|
=
|
Time periods
Prob > chi2
|
=
|
196
7
28
172.77
0.0000
=
rem2 Coef. Std. Err. z P>|z| [95% Conf.
Interval]
dav
dat
txt
exp
-2.44e-07 8.63e-08 -2.82 0.005 -4.13e-07
-7.46e-08
2.48e-07 8.94e-08 2.78 0.005 7.31e-08 4.23e-07
-.2030084 .0251287 -8.08 0.000 -.2522596
-.1537571
6.38e-06 6.56e-06 0.97 0.331 -6.48e-06 .0000192
dummy
_cons
.0473158 .0164051 2.88 0.004 .0151623 .0794693
.2159936 .0287288 7.52 0.000 .1596863 .272301
Réalisé par OUONOGO Souleymane 65
ANALYSE DES DETERMINANTS DE LA SURLIQUIDITE BANCAIRE DANS
L'UEMOA
|