Bảng A3.6. Kết quả Kiem dinh wald bien NFA phương trình sai phân
Test Statistic | Value | df | Probability |
t-statistic | 3.835237 | 26 | 0.0007 |
F-statistic | 14.70904 | (1, 26) | 0.0007 |
Chi-square | 14.70904 | 1 | 0.0001 |
Null Hypothesis: C(2)=0 Null Hypothesis Summary: | |||
Normalized Restriction (= 0) | Value | Std. Err. | |
C(2) | 0.055448 | 0.014457 | |
Restrictions are linear in coefficients. |
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Bảng A3.7. Kết quả kiem dinh Wald biến DL phương trình sai phân
Equation: Untitled | |||
Test Statistic | Value | df | Probability |
t-statistic | 8.196629 | 26 | 0.0000 |
F-statistic | 67.18472 | (1, 26) | 0.0000 |
Chi-square | 67.18472 | 1 | 0.0000 |
Null Hypothesis: C(13)+C(14)=0 | |||
Null Hypothesis Summary: | |||
Normalized Restriction (= 0) | Value | Std. Err. | |
C(13) + C(14) | 0.247890 | 0.030243 |
PHỤ LỤC 4
KẾT QUẢ ƯỚC LƯỢNG VÀ KIỂM ĐỊNH MÔ HÌNH HIỆU QUẢ CAN THIỆP TRUNG HÒA
Bảng A4.1. Thống kê mô tả các biến
CA_1 | D1_1SDR_1 | D2_1SDE_1 | DCPI_1 | DDL_1 | |
Mean | -0.005115 | -0.011810 | -4.07E-05 | 0.020362 | -0.018190 |
Median | 0.000695 | 8.94E-05 | -0.001514 | 0.016320 | -0.017303 |
Maximum | 0.157609 | 0.163090 | 0.018796 | 0.083215 | 0.153352 |
Minimum | -0.388327 | -0.187884 | -0.017948 | -0.004749 | -0.117449 |
Std. Dev. | 0.069440 | 0.058126 | 0.007641 | 0.017941 | 0.055057 |
DMM | DNDA_AD | DNFA_AD | DR_E | Y_1 | |
Mean | 0.013331 | -0.014198 | 0.026376 | 0.006096 | -0.064223 |
Median | 0.014299 | -0.003859 | 0.010483 | 0.011936 | -0.259937 |
Maximum | 0.191770 | 0.166292 | 0.375314 | 0.587656 | 3.015828 |
Minimum | -0.137199 | -0.320034 | -0.130482 | -1.381377 | -1.835627 |
Std. Dev. | 0.059390 | 0.074187 | 0.078434 | 0.365518 | 1.062466 |
Bảng A4.2. Ma trận hệ số tương quan giữa các biến
CA_1 | D1_1SDR_1 | D2_1SDE_1 | DCPI_1 | DDL_1 | DMM | DNDA_AD | DNFA_AD | DR_E | Y_1 | |
CA_1 | 1.00 | -0.01 | -0.06 | -0.47 | -0.13 | 0.01 | -0.14 | 0.15 | 0.19 | -0.40 |
D1_1SDR_1 | -0.01 | 1.00 | -0.43 | 0.08 | 0.35 | 0.02 | -0.49 | 0.42 | 0.19 | -0.04 |
D2_1SDE_1 | -0.06 | -0.43 | 1.00 | -0.22 | -0.20 | -0.05 | 0.40 | -0.41 | 0.11 | 0.01 |
DCPI_1 | -0.47 | 0.08 | -0.22 | 1.00 | 0.29 | -0.09 | 0.03 | -0.02 | -0.32 | 0.41 |
DDL_1 | -0.13 | 0.35 | -0.20 | 0.29 | 1.00 | -0.10 | -0.01 | -0.05 | -0.07 | 0.07 |
DMM | 0.01 | 0.02 | -0.05 | -0.09 | -0.10 | 1.00 | -0.32 | 0.02 | 0.07 | -0.26 |
DNDAAD | -0.14 | -0.49 | 0.40 | 0.03 | -0.01 | -0.32 | 1.00 | -0.91 | -0.02 | 0.09 |
DNFA_AD | 0.15 | 0.42 | -0.41 | -0.02 | -0.05 | 0.02 | -0.91 | 1.00 | -0.03 | -0.03 |
DR_E | 0.19 | 0.19 | 0.11 | -0.32 | -0.07 | 0.07 | -0.02 | -0.03 | 1.00 | -0.43 |
Y_1 | -0.40 | -0.04 | 0.01 | 0.41 | 0.07 | -0.26 | 0.09 | -0.03 | -0.43 | 1.00 |
Bảng A4.3.Kết quả ước lượng phương trình (3.6)
Method: Two-Stage Least Squares | ||||
Sample: 2004Q1 2017Q2 | ||||
Included observations: 54 | ||||
Instrument specification: DMM DCPI_1 Y_1 CA_1 DR_E DDL_1 KH | ||||
D1_1SDR_1 D2_1SDE_1 | ||||
Constant added to instrument list | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | 0.006201 | 0.004320 | 1.435386 | 0.1582 |
DNFA_AD | -0.679842 | 0.148963 | -4.563831 | 0.0000 |
DMM | -0.394999 | 0.045195 | -8.739840 | 0.0000 |
DCPI_1 | -0.064275 | 0.152507 | -0.421456 | 0.6755 |
Y_1 | -0.245278 | 0.332218 | -0.738302 | 0.4643 |
CA_1 | -0.045958 | 0.072879 | -0.630605 | 0.5316 |
DR_E | 0.034058 | 0.147339 | 0.231152 | 0.8183 |
DDL_1 | -0.015004 | 0.058633 | -0.255897 | 0.7992 |
KH | 0.046399 | 0.283150 | 0.163866 | 0.8706 |
D1_1SDR_1 | -0.231484 | 0.131886 | -1.755175 | 0.0862 |
R-squared | 0.919966 | Mean dependent var | -0.014198 | |
Adjusted R-squared | 0.903595 | S.D. dependent var | 0.074187 | |
S.E. of regression | 0.023034 | Sum squared resid | 0.023346 | |
F-statistic | 28.86512 | Durbin-Watson stat | 2.177201 | |
Prob(F-statistic) | 0.000000 | Second-Stage SSR | 0.153857 | |
J-statistic | 1.52E-43 | Instrument rank | 10 |
Bảng A4.4. Kết quả kiểm định phương sai thay đổi phương trình (3.6)
F-statistic | 1.695426 | Prob. F(9,44) | 0.1190 | |
Obs*R-squared | 13.90471 | Prob. Chi-Square(9) | 0.1258 | |
Scaled explained SS | 22.98980 | Prob. Chi-Square(9) | 0.0062 | |
Test Equation: | ||||
Dependent Variable: RESID^2 | ||||
Method: Least Squares | ||||
Sample: 2004Q1 2017Q2 | ||||
Included observations: 54 | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | 0.000244 | 0.000146 | 1.671598 | 0.1017 |
DNFA_AD | 0.006677 | 0.001943 | 3.437031 | 0.0013 |
DMM | 0.000177 | 0.001388 | 0.127919 | 0.8988 |
DCPI_1 | -0.001572 | 0.007379 | -0.213049 | 0.8323 |
Y_1 | -0.010825 | 0.009142 | -1.184049 | 0.2428 |
CA_1 | -0.003317 | 0.002213 | -1.498793 | 0.1411 |
DR_E | 0.000528 | 0.003934 | 0.134183 | 0.8939 |
DDL_1 | 0.002417 | 0.001633 | 1.480287 | 0.1459 |
KH | -0.002368 | 0.005757 | -0.411355 | 0.6828 |
D1_1SDR_1 | -0.008176 | 0.005560 | -1.470575 | 0.1485 |
R-squared | 0.257495 | Mean dependent var | 0.000432 | |
Adjusted R-squared | 0.105619 | S.D. dependent var | 0.000974 | |
S.E. of regression | 0.000921 | Akaike info criterion | -10.97657 | |
Sum squared resid | 3.73E-05 | Schwarz criterion | -10.60824 | |
Log likelihood | 306.3674 | Hannan-Quinn criter. | -10.83452 | |
F-statistic | 1.695426 | Durbin-Watson stat | 2.404850 | |
Prob(F-statistic) | 0.118952 |
Bảng A4.5. Kết quả kiểm định tự tương quan phần dư phương trình (3.6)
Obs*R-squared | 0.673330 | Prob. Chi-Square(2) | 0.7141 | |
Test Equation: | ||||
Dependent Variable: RESID | ||||
Method: Two-Stage Least Squares | ||||
Sample: 2004Q1 2017Q2 | ||||
Included observations: 54 | ||||
Presample missing value lagged residuals set to zero. | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | 0.000498 | 0.006054 | 0.082282 | 0.9348 |
DNFA_AD | -0.007500 | 0.168451 | -0.044526 | 0.9647 |
DMM | 0.005442 | 0.052489 | 0.103686 | 0.9179 |
DCPI_1 | -0.015028 | 0.206902 | -0.072633 | 0.9424 |
Y_1 | 0.071382 | 0.365617 | 0.195238 | 0.8461 |
CA_1 | 0.001921 | 0.074739 | 0.025709 | 0.9796 |
DR_E | 0.002063 | 0.132414 | 0.015581 | 0.9876 |
DDL_1 | 0.010767 | 0.077047 | 0.139753 | 0.8895 |
KH | -0.001046 | 0.249220 | -0.004197 | 0.9967 |
D1_1SDR_1 | -0.015821 | 0.115855 | -0.136560 | 0.8920 |
RESID(-1) | -0.121470 | 0.153977 | -0.788884 | 0.4346 |
RESID(-2) | -0.055765 | 0.149918 | -0.371974 | 0.7118 |
R-squared | 0.012469 | Mean dependent var | -4.12E-18 | |
Adjusted R-squared | -0.246170 | S.D. dependent var | 0.020988 | |
S.E. of regression | 0.023429 | Akaike info criterion | -4.476551 | |
Sum squared resid | 0.023055 | Schwarz criterion | -4.034555 | |
Log likelihood | 132.8669 | Hannan-Quinn criter. | -4.306090 | |
F-statistic | 0.048210 | Durbin-Watson stat | 2.045336 | |
Prob(F-statistic) | 0.999997 |
Bảng A4.6. Kết quả kiểm định tính dừng của phần dư phương trình (3.6)
Exogenous: Constant | ||||
Lag Length: 0 (Automatic - based on SIC, maxlag=10) | ||||
t-Statistic | Prob.* | |||
Augmented Dickey-Fuller test statistic | -7.807966 | 0.0000 | ||
Test critical values: | 1% level | -3.560019 | ||
5% level | -2.917650 | |||
10% level | -2.596689 | |||
*MacKinnon (1996) one-sided p-values. | ||||
Augmented Dickey-Fuller Test Equation | ||||
Dependent Variable: D(RESID01) | ||||
Method: Least Squares | ||||
Sample (adjusted): 2004Q2 2017Q2 | ||||
Included observations: 53 after adjustments | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
RESID01(-1) | -1.088798 | 0.139447 | -7.807966 | 0.0000 |
C | 5.66E-05 | 0.002927 | 0.019336 | 0.9846 |
R-squared | 0.544498 | Mean dependent var | 6.25E-05 | |
Adjusted R-squared | 0.535566 | S.D. dependent var | 0.031264 | |
S.E. of regression | 0.021307 | Akaike info criterion | -4.822603 | |
Sum squared resid | 0.023152 | Schwarz criterion | -4.748252 | |
Log likelihood | 129.7990 | Hannan-Quinn criter. | -4.794011 | |
F-statistic | 60.96434 | Durbin-Watson stat | 2.003870 | |
Prob(F-statistic) | 0.000000 |
Bảng A4.7. Kết quả ước lượng phương trình (3.7)
Method: Two-Stage Least Squares | ||||
Sample (adjusted): 2004Q2 2017Q2 | ||||
Included observations: 53 after adjustments | ||||
Convergence achieved after 14 iterations | ||||
Instrument specification: DMM DCPI_1 Y_1 CA_1 DR_E DDL_1 KH | ||||
D1_1SDR_1 D2_1SDE_1 | ||||
Constant added to instrument list | ||||
Lagged dependent variable & regressors added to instrument list | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | 0.011971 | 0.003320 | 3.605932 | 0.0008 |
DNDA_AD | -0.879631 | 0.121957 | -7.212607 | 0.0000 |
DMM | -0.372104 | 0.036889 | -10.08710 | 0.0000 |
DCPI_1 | -0.160884 | 0.118095 | -1.362328 | 0.1804 |
Y_1 | -0.385641 | 0.260697 | -1.479268 | 0.1465 |
CA_1 | 0.097758 | 0.032140 | 3.041599 | 0.0040 |
DR_E | 0.171524 | 0.123204 | 1.392193 | 0.1712 |
DDL_1 | -0.145018 | 0.067198 | -2.158088 | 0.0367 |
KH | 0.527362 | 0.135101 | 3.903473 | 0.0003 |
D2_1SDE_1 | -0.817518 | 0.517833 | -1.578730 | 0.1219 |
AR(1) | -0.305037 | 0.114145 | -2.672354 | 0.0107 |
R-squared | 0.933803 | Mean dependent var | 0.026715 | |
Adjusted R-squared | 0.918042 | S.D. dependent var | 0.079145 | |
S.E. of regression | 0.022658 | Sum squared resid | 0.021562 | |
Durbin-Watson stat | 2.046397 | J-statistic | 17.91666 | |
Instrument rank | 20 | Prob(J-statistic) | 0.036153 | |
Inverted AR Roots | -.31 |
Bảng A4.8. Kết quả kiểm định phương sai thay đổi phương trình (3.7)
F-statistic | 0.257541 | Prob. F(9,43) | 0.9825 | |
Obs*R-squared | 2.710789 | Prob. Chi-Square(9) | 0.9747 | |
Scaled explained SS | 4.701598 | Prob. Chi-Square(9) | 0.8595 | |
Test Equation: | ||||
Dependent Variable: RESID^2 | ||||
Method: Least Squares | ||||
Sample: 2004Q2 2017Q2 | ||||
Included observations: 53 | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | 0.000335 | 0.000203 | 1.652529 | 0.1057 |
DNDA_AD | 0.000532 | 0.003891 | 0.136640 | 0.8920 |
DMM | -0.000759 | 0.001556 | -0.488193 | 0.6279 |
DCPI_1 | -0.000162 | 0.006153 | -0.026277 | 0.9792 |
Y_1 | -0.013181 | 0.011223 | -1.174416 | 0.2467 |
CA_1 | -0.000829 | 0.001675 | -0.495026 | 0.6231 |
DR_E | 2.59E-05 | 0.004653 | 0.005556 | 0.9956 |
DDL_1 | -0.001548 | 0.002577 | -0.600603 | 0.5513 |
KH | 0.003671 | 0.004449 | 0.825195 | 0.4138 |
D2_1SDE_1 | 0.017013 | 0.012190 | 1.395640 | 0.1700 |
R-squared | 0.051147 | Mean dependent var | 0.000407 | |
Adjusted R-squared | -0.147450 | S.D. dependent var | 0.000965 | |
S.E. of regression | 0.001034 | Akaike info criterion | -10.74244 | |
Sum squared resid | 4.60E-05 | Schwarz criterion | -10.37068 | |
Log likelihood | 294.6746 | Hannan-Quinn criter. | -10.59948 | |
F-statistic | 0.257541 | Durbin-Watson stat | 2.240505 | |
Prob(F-statistic) | 0.982533 |
Bảng A4.9. Kết quả kiểm định tự tương quan phương trình (3.7)
Obs*R-squared | 3.521321 | Prob. Chi-Square(2) | 0.1719 | |
Test Equation: | ||||
Dependent Variable: RESID | ||||
Method: Two-Stage Least Squares | ||||
Sample: 2004Q2 2017Q2 | ||||
Included observations: 53 | ||||
Coefficient covariance computed using outer product of gradients | ||||
Presample missing value lagged residuals set to zero. | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | -0.000499 | 0.004551 | -0.109762 | 0.9131 |
DNDA_AD | -0.066432 | 0.044537 | -1.491622 | 0.1436 |
DMM | -0.024001 | 0.055394 | -0.433275 | 0.6671 |
DCPI_1 | 0.039310 | 0.170067 | 0.231146 | 0.8184 |
Y_1 | 0.051647 | 0.283876 | 0.181936 | 0.8566 |
CA_1 | -0.011069 | 0.050422 | -0.219534 | 0.8274 |
DR_E | -0.026577 | 0.100069 | -0.265585 | 0.7919 |
DDL_1 | 0.015045 | 0.051625 | 0.291428 | 0.7722 |
KH | -0.055033 | 0.112959 | -0.487197 | 0.6288 |
D2_1SDE_1 | 0.276933 | 0.398700 | 0.694590 | 0.4913 |
AR(1) | -0.889198 | 1.110493 | -0.800723 | 0.4280 |
RESID(-1) | 0.892554 | 1.128218 | 0.791118 | 0.4335 |
RESID(-2) | -0.386280 | 0.365644 | -1.056436 | 0.2971 |
R-squared | 0.066440 | Mean dependent var | -5.26E-14 | |
Adjusted R-squared | -0.213628 | S.D. dependent var | 0.020363 | |
S.E. of regression | 0.022433 | Akaike info criterion | -4.547420 | |
Sum squared resid | 0.020129 | Schwarz criterion | -4.064141 | |
Log likelihood | 133.5066 | Hannan-Quinn criter. | -4.361574 | |
F-statistic | 0.237228 | Durbin-Watson stat | 1.915000 | |
Prob(F-statistic) | 0.994930 |
Bảng A4.10. Kết quả kiểm định tính dừng phần dư của phương trình (3.7)
Exogenous: Constant | ||||
Lag Length: 0 (Automatic - based on SIC, maxlag=10) | ||||
t-Statistic | Prob.* | |||
Augmented Dickey-Fuller test statistic | -7.244771 | 0.0000 | ||
Test critical values: | 1% level | -3.562669 | ||
5% level | -2.918778 | |||
10% level | -2.597285 | |||
*MacKinnon (1996) one-sided p-values. | ||||
Augmented Dickey-Fuller Test Equation | ||||
Dependent Variable: D(RESID02) | ||||
Method: Least Squares | ||||
Sample (adjusted): 2004Q3 2017Q2 | ||||
Included observations: 52 after adjustments | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
RESID02(-1) | -1.023794 | 0.141315 | -7.244771 | 0.0000 |
C | 9.11E-05 | 0.002877 | 0.031675 | 0.9749 |
R-squared | 0.512132 | Mean dependent var | 0.000125 | |
Adjusted R-squared | 0.502374 | S.D. dependent var | 0.029414 | |
S.E. of regression | 0.020749 | Akaike info criterion | -4.874912 | |
Sum squared resid | 0.021527 | Schwarz criterion | -4.799864 | |
Log likelihood | 128.7477 | Hannan-Quinn criter. | -4.846141 | |
F-statistic | 52.48670 | Durbin-Watson stat | 1.997415 | |
Prob(F-statistic) | 0.000000 |
Bảng A4.11. Kết quả ước lượng với biến tương tác DDL_1*DNDA_AD phương trình (3.7)
Method: Two-Stage Least Squares | ||||
Sample (adjusted): 2004Q2 2017Q2 | ||||
Included observations: 53 after adjustments | ||||
Instrument specification: DMM DCPI_1 Y_1 CA_1 DR_E DDL_1 KH | ||||
D1_1SDR_1 D2_1SDE_1 DDL_1*DNDA_AD | ||||
Constant added to instrument list | ||||
Lagged dependent variable & regressors added to instrument list | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | 0.011678 | 0.002998 | 3.895062 | 0.0004 |
DNDA_AD | -0.935611 | 0.087389 | -10.70633 | 0.0000 |
DMM | -0.380767 | 0.036860 | -10.32997 | 0.0000 |
DCPI_1 | -0.199571 | 0.132313 | -1.508327 | 0.1391 |
Y_1 | -0.358954 | 0.234116 | -1.533232 | 0.1329 |
CA_1 | 0.101981 | 0.036870 | 2.765941 | 0.0085 |
DR_E | 0.203104 | 0.121776 | 1.667847 | 0.1030 |
DDL_1 | -0.142862 | 0.060949 | -2.343966 | 0.0240 |
KH | 0.572437 | 0.158229 | 3.617775 | 0.0008 |
D2_1SDE_1 | -0.648703 | 0.405603 | -1.599354 | 0.1174 |
DDL_1*DNDA_AD | -0.979765 | 1.138378 | -0.860667 | 0.3944 |
AR(1) | -0.274233 | 0.115602 | -2.372220 | 0.0225 |
R-squared | 0.939082 | Mean dependent var | 0.026715 | |
Adjusted R-squared | 0.922738 | S.D. dependent var | 0.079145 | |
S.E. of regression | 0.021999 | Sum squared resid | 0.019842 | |
Durbin-Watson stat | 2.047711 | J-statistic | 19.05916 | |
Instrument rank | 22 | Prob(J-statistic) | 0.039518 | |
Inverted AR Roots | -.27 |
Bảng A4.12. Kết quả kiểm định Wald biến KH của phương trình (3.7)
Equation: Untitled | |||
Test Statistic | Value | df | Probability |
t-statistic | 3.903473 | 42 | 0.0003 |
F-statistic | 15.23710 | (1, 42) | 0.0003 |
Chi-square | 15.23710 | 1 | 0.0001 |
Bảng A4.13. Kết quả ước lượng với biến tương tác KH*DNDA_AD phương trình (3.7)
Method: Two-Stage Least Squares | ||||
Sample (adjusted): 2004Q2 2017Q2 | ||||
Included observations: 53 after adjustments | ||||
Instrument specification: DMM DCPI_1 Y_1 CA_1 DR_E DDL_1 KH | ||||
D1_1SDR_1 D2_1SDE_1 KH*DNDA_AD | ||||
Constant added to instrument list | ||||
Lagged dependent variable & regressors added to instrument list | ||||
Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | 0.014314 | 0.003956 | 3.618222 | 0.0008 |
DNDA_AD | -0.733288 | 0.147619 | -4.967438 | 0.0000 |
DMM | -0.334188 | 0.047853 | -6.983642 | 0.0000 |
DCPI_1 | -0.139379 | 0.142487 | -0.978185 | 0.3337 |
Y_1 | -0.353213 | 0.284340 | -1.242221 | 0.2212 |
CA_1 | 0.051985 | 0.025034 | 2.076619 | 0.0441 |
DR_E | 0.119109 | 0.118822 | 1.002411 | 0.3220 |
DDL_1 | -0.110423 | 0.055729 | -1.981447 | 0.0543 |
KH | 0.310557 | 0.115364 | 2.691987 | 0.0102 |
D2_1SDE_1 | -1.390046 | 0.670350 | -2.073611 | 0.0444 |
KH*DNDA_AD | -3.426963 | 1.379801 | -2.483665 | 0.0172 |
AR(1) | -0.212667 | 0.091868 | -2.314928 | 0.0257 |