Table 3.
Nonlinear effects of air quality on mental health and subjective well-being
| Dependent variable | Life dissatisfaction
|
Hedonic unhappiness
|
Mental well-being
|
Depressive symptoms
|
|
|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | ||
| API51_100 | 0.000 (0.018) | 0.077** (0.038) | 0.350* (0.191) | 0.029 (0.022) | |
| API101_50 | −0.004 (0.029) | 0.118** (0.046) | 0.595*** (0.215) | 0.070*** (0.026) | |
| API151_200 | 0.007 (0.064) | 0.221** (0.086) | 1.040*** (0.331) | 0.119*** (0.039) | |
| API201_00 | 0.065 (0.083) | 0.277** (0.109) | 0.502 (0.460) | 0.112** (0.053) | |
| API301_500 | −0.136 (0.271) | 0.323** (0.133) | 1.378*** (0.511) | 0.199** (0.084) | |
| Household per capita income (log) | −0.020** (0.008) | −0.000 (0.012) | −0.017 (0.047) | −0.001 (0.006) | |
| Relative income | −0.190*** (0.009) | −0.040*** (0.014) | −0.215*** (0.059) | −0.023*** (0.007) | |
|
| |||||
| Individual fixed effect | Yes | Yes | Yes | Yes | |
| County, year and month fixed effects | Yes | Yes | Yes | Yes | |
| Day-of-week fixed effects, quadratic time trend | Yes | Yes | Yes | Yes | |
| Weather controls | Yes | Yes | Yes | Yes | |
| Number of observations | 49,333 | 25,673 | 25,593 | 25,593 | |
| Adjusted (within) R-squared | 0.110 | 0.020 | 0.025 | 0.012 | |
Source: China Family Panel Studies 2010, 2012 and 2014.
Note: All other covariates follow Table 2. Robust standard errors, clustered at the county level, are presented in parentheses. API = air pollution index.
*
10% significance level.
**
5% significance level.
***
1% significance level.