Dependent Variable: TFP | (1) | (2) |
| 2001-2003 2002 | 2001-2004 2003 |
DID | 1.2753 | −2.7139 |
| (1.7760) | (1.7746) |
Control variables | Yes | Yes |
County fixed effect | Yes | Yes |
Year fixed effect | Yes | Yes |
Observations | 360 | 480 |