TABLE 5.
Stability testing.
| People | People | People | People | People | People | People | |
| IP | 0.452*** | 0.275*** | 0.269*** | 0.275*** | |||
| (7.07) | (5.61) | (4.87) | (4.94) | ||||
| L.IP | 0.391*** | ||||||
| (8.01) | |||||||
| PV | 0.0582*** | ||||||
| (5.76) | |||||||
| UV | 0.282*** | ||||||
| (5.02) | |||||||
| Baidu | 0.104*** | 0.144*** | 0.158*** | 0.154*** | |||
| (1.91) | (2.66) | (2.99) | (2.86) | ||||
| L.Baidu | 0.0742 | ||||||
| (1.61) | |||||||
| PC | −0.327 | ||||||
| (−1.50) | |||||||
| Mobile | 0.234*** | ||||||
| (3.89) | |||||||
| Weekend | 70.07*** | 71.15*** | 75.84*** | 63.42*** | 69.35*** | 69.50*** | 67.78*** |
| (6.28) | (6.14) | (6.55) | (5.55) | (5.95) | (6.00) | (6.68) | |
| Bounce | −137.7 | −308.1** | −331.1** | −304.7** | −289.6* | −295.8* | −365.9*** |
| (−0.90) | (−2.03) | (−2.12) | (−2.08) | (−1.92) | (−1.95) | (−2.69) | |
| pollution | 36.83 | 31.26 | 8.411 | 32.39 | 40.97 | ||
| (1.05) | (0.86) | (0.22) | (0.93) | (1.26) | |||
| AQI | 0.502 | ||||||
| (1.53) | |||||||
| PM2.5 | 0.401 | ||||||
| (0.91) | |||||||
| Constant | 1.966 | 65.75 | 147.6* | 68.09 | 31.54 | 49.26 | 89.50 |
| (0.02) | (0.82) | (1.72) | (0.89) | (0.38) | (0.60) | (1.27) | |
| F | 34.96 | 31.56 | 29.15 | 35.61 | 32.87 | 32.05 | 43.18 |
| R2 | 0.653 | 0.629 | 0.610 | 0.657 | 0.639 | 0.633 | 0.701 |
| AIC | 10565 | 1063.0 | 1067.7 | 1055.3 | 1060.5 | 1062.1 | 1029.3 |
| BIC | 1072.1 | 1078.6 | 1083.5 | 1070.9 | 1076.0 | 1077.6 | 1044.8 |
| Root MSE | 48.799 | 50.428 | 51.685 | 48.507 | 49.78 | 50.18 | 44841 |
T statistics in parentheses *p < 0.1, **p < 0.05, ***p < 0.01.