TABLE 7.
Effect of transport and traffic on Chinese cabbage price: DID estimates
| (1) | (2) | |
|---|---|---|
| Treat×ΔFreight Volume | −0.261*** | −0.275*** |
| (−3.12) | (−3.25) | |
| Treat | 0.508*** | 0.496*** |
| (12.90) | (12.46) | |
| Constant | 0.208*** | 0.255*** |
| (5.37) | (6.71) | |
| Market FEs | Yes | Yes |
| Day FEs | Yes | Yes |
| Market×Time | No | Yes |
| Observations | 28,219 | 28,219 |
| R‐squared | 0.522 | 0.581 |
| Control group | 2018 Jan. ‐2018 May & | 2018 Jan. ‐2018 May & |
| 2019 Jan. ‐2019 May | 2019 Jan. ‐2019 May |
Notes: Treat equal to 1 for 2020, equal to 0 otherwise; ΔFreight Volume is the first difference of freight volume between 2020 and 2019. The time window of observations is from January 29 to May 7, the fifteenth week after lockdown. Standard errors are clustered at the market level and t statistics are in parentheses.
* = p < 0.1.
** = p < 0.05.
***
= p < 0.01.