A Comparative Study on the Dynamic Correlation Effect of Foreign and Domestic Gasoline and Diesel Price Fluctuations
Publié en ligne: 24 août 2020
Pages: 581 - 592
Reçu: 12 mars 2020
Accepté: 10 mai 2020
© 2020 Shuliang Zhang et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
ADF stationarity test of variables
Sequence | Test form | ADF | 1% Critical Value | Stationarity |
---|
DLNCPg | (0,0,0) | −8.893053 | −2.583298 | Stationary |
DLNEPg | (0,0,0) | −9.457722 | −2.583298 | Stationary |
DLNMPg | (0,0,0) | −9.633763 | −2.583298 | Stationary |
DLNAPg | (0,0,0) | −9.628522 | −2.583298 | Stationary |
DLNCPd | (0,0,0) | −7.892860 | −2.583298 | Stationary |
DLNEPd | (0,0,0) | −9.336462 | −2.583298 | Stationary |
DLNMPd | (0,0,0) | −10.55363 | −2.583298 | Stationary |
DLNAPd | (0,0,0) | −9.123758 | −2.583298 | Stationary |
Estimation results of regression coefficient and test results of constraint conditions (0.01level)
Explained variable | Explanatory variable | α | β | RLOP | ALOP |
---|
DLNCPd | DLNCPg | 0.000890 | 0.826145 | Accepted | Accepted |
DLNEPd | DLNEPg | −0.001750 | 0.612518 | Rejected | Rejected |
DLNMPd | DLNMPg | −0.002504 | 0.564950 | Rejected | Rejected |
DLNAPd | DLNAPg | −0.000689 | 0.721256 | Rejected | Rejected |