TABLE 2.
Impacts of the nationwide lockdown on Chinese cabbage price: T‐RD estimates with different bandwidth
| (1) | (2) | |
|---|---|---|
| Panel A | Conventional | |
| 0.445 *** | 0.543 *** | |
| (20.19) | (36.23) | |
| Panel B | Bias corrected | |
| 0.438 *** | 0.456 *** | |
| (19.84) | (30.38) | |
| Panel C | Robust | |
| 0.438 *** | 0.456 *** | |
| (11.95) | (19.03) | |
| Effective N | 3075 | 9562 |
| Bandwidth | 0.5 × Best Bandwidth | 1.5 × Best Bandwidth |
Notes: Each cell reports the coefficient of After from one regression with controls for market FE, month FE, the interaction, and a fourth‐order polynomial time trend. In each panel, the dependent variable is ln(Price) and the results are calculated with different types of standard errors. Columns 1 and 2 respectively choose 0.5 and 1.5 times the best bandwidth in column 4 of Table 1. t statistics are in parentheses.
* = p < 0.1.
** = p < 0.05.
***
= p < 0.01.