Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Regional heterogeneity test.
| VAR | (1) Eastern | (2) Central | (3) Western |
|---|---|---|---|
| DID | −0.207 (0.213) | −0.603** (0.249) |
−0.687*** (0.241) |
| Constant | 32.939*** (5.548) |
11.505* (5.842) |
21.507*** (4.653) |
| Observations | 1,093 | 1,069 | 880 |
| R 2 | 0.332 | 0.204 | 0.163 |
| Controls | YES | YES | YES |
| Year-fix | YES | YES | YES |
| City-fix | YES | YES | YES |
represent statistical significance at the 1%, 5%, and 10% levels, respectively. The values in parentheses are robust standard errors for clustering to the city level.
