Table 2
Program Effects on Per Capita Solid Waste Generation in New Hampshire
| OLS (Robust Errors) | Conventional Treatment Effects Modela | 2SLSa | 2SLSb | |
|---|---|---|---|---|
| Constant | 0.777 (0.589) | 1.429* (0.813) | 1.442* (0.834) | 1.447 (0.832) |
| PAYT | - 0.566*** (0.140) | - 1.132** (0.459) | - 1.143** (0.486) | - 1.137** (0.498) |
| CurbCycl | 0.133 (0.111) | 0.140(0.121) | 0.141 (0.121) | 0.164 (0.460) |
| CurbPkUp | 0.013 (0.129) | 0.029 (0.140) | 0.029 (0.141) | 0.019 (0.244) |
| MandRec | - 0.188* (0.100) | - 0.209* (0.111) | - 0.210* (0.111) | - 0.212* (0.118) |
| AvgHSize | - 0.722*** (0.234) | - 0.908*** (0.279) | - 0.912*** (0.284) | - 0.915*** (0.286) |
| College | - 0.004 (0.005) | - 0.002 (0.005) | - 0.002 (0.006) | - 0.002 (0.006) |
| PCInc | 0.018 (0.018) | 0.009 (0.017) | 0.008 (0.018) | 0.008 (0.017) |
| X_PAYT | 0.348 (0.266) | |||
| R2 | 0.127 | 0.135 | ||
| Estimated % f in | 43.77 | 70.98 | 71.67 | 71.66 |
| PCMSW with | ||||
| PAYT |
Note: Standard errors are in parentheses. The estimator proposed by Kennedy (1981) is employed to compute the estimated percent change in PCMSW due to the discrete change in PAYT from 0 to 1: 100*(e
-0.5* - 1), where is the estimated coefficient of PAYT and () is the estimated variance. Dependent variable: log(PCMSW). OLS, ordinary least squares; 2SLS, two-stage least squares.↵a Endogenous PAYT.
↵b Endogenous PAYTand CurbCycl.
↵* Significant at the 0.1 level;
↵** significant at the 0.05 level;
↵*** significant at the 0.01 level.
