Model 1 |
Model 2 |
Model 3 |
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|---|---|---|---|---|---|---|
| PP Stat | p-Value | PP Stat | p-Value | PP Stat | p-Value | |
| Brent | 0.1576654 | 0.1 | 0.0958655 | 0.1 | 0.0890474 | 0.1 |
| US Refiner Acquisition Cost | 0.1484867 | 0.1 | 0.0725476 | 0.1 | 0.0687310 | 0.1 |
| WTI | 0.1458470 | 0.1 | 0.0936048 | 0.1 | 0.0838754 | 0.1 |
| Model 1: No drift or trend Model 2: With drift, no trend Model 3: With drift and trend |
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