Table 3 Instrumental variable estimates
| 听 | (1) | (2) | (3) | (4) |
|---|---|---|---|---|
Commute time, hours (1. stage) | Endline Standardized Math Scores | Commute time, hours (1. stage) | Mental Health | |
Commuting time, hours | - | -1.433*** | - | 15.838*** |
(0.361) | (4.081) | |||
Square km per inhabitant in county | -5.459*** | - | -5.340*** | - |
(1.402) | (1.400) | |||
Share of population in county living in urban areas | -0.101*** | - | -0.103*** | - |
(0.035) | (0.035) | |||
F-test for weak instruments | 46.129 | - | 45.688 | - |
Test for over identifying restrictions (p-value) | - | 0.755 | - | 0.771 |
Controls | Yes | Yes | Yes | Yes |
N | 12,323 | 12,323 | 11,978 | 11,978 |
R-squared | 0.0866 | 0.2880 | 0.0870 | 0.2685 |