Research Article
How Does Internet Information Affect Oil Price Fluctuations? Evidence from the Hot Degree of Market
Table 4
Results of unit root test.
| | Unit root test | Supply | Demand | PHD | NHD | Price |
| | ADF | Level | −1.591 (0.789) | −2.893 (0.169) | −2.041 (0.270) | −2.076 (0.255) | −1.347 (0.605) | | First differenced | −12.315 (≤0.001) | −9.743 (≤0.001) | −10.422 (≤0.001) | −10.093 (≤0.001) | −7.742 (≤0.001) |
| | PP | Level | −2.092 (0.543) | −2.968 (0.147) | −2.010 (0.282) | −2.089 (0.250) | −1.347 (0.605) | | First differenced | −12.315 (≤0.001) | −9.753 (≤0.001) | −10.616 (≤0.001) | −10.404 (≤0.001) | −7.699 (≤0.001) |
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The numbers in the table are the values of the t-statistic, and the values in brackets are values. |
