Research Article
A Driving Force Analysis and Forecast for Gas Consumption Demand in China
Table 5
The variables of unit root test results.
| | Variable | ADF statistics | 5% critical value | Conclusion |
| | LNY | 0.048960 | −3.040391 | Not smooth | | LNGDP | 0.454627 | −3.052169 | Not smooth | | LNCZ | −0.700623 | −3.020686 | Not smooth | | LNP | −2.564774 | −3.052169 | Not smooth | | (LNY) | −0.652005 | −3.040391 | Not smooth | | (LNGDP) | −5.743269 | −3.052169 | Smooth | | (LNCZ) | −2.076184 | −3.020686 | Not smooth | | (LNP) | −2.740084 | −3.020686 | Not smooth | | (LNY, 2) | −6.069975 | −3.040391 | Not smooth | | (LNGDP, 2) | −3.206952 | −3.081002 | Smooth | | (LNCZ, 2) | −4.574096 | −3.029970 | Smooth | | (LNP, 2) | −4.192706 | −3.029970 | Smooth |
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