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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: J Health Econ. 2018 Aug 13;61:134–150. doi: 10.1016/j.jhealeco.2018.07.004

Table A5:

Robustness Check: Future Number of Wells by Proximity


(1) (2) (3) (4)
d < 2 km d < 2.5 km d < 3 km d < 3.5 km

Panel A: Low Birth Weight

Wells in ‘d’ km * future −0.000223 −0.000133 8.19e-05 6.12e-06
(0.000449) (0.000341) (0.000172) (0.000139)
Observations 14,049 21,524 28,756 36,241
R-squared 0.023 0.021 0.020 0.019

Panel B: Term Birth Weight

Wells in ‘d’ km * future 0.977 0.318 0.410 0.730**
(1.342) (0.588) (0.359) (0.272)
Observations 12,694 19,463 25,969 32,692
R-squared 0.080 0.076 0.078 0.077

Panel C: Premature

Wells in ‘d’ km * future 0.000394 0.000172 0.000352 0.000290
(0.000412) (0.000476) (0.000273) (0.000227)
Observations 13,784 21,109 28,206 35,519
R-squared 0.017 0.011 0.010 0.010

Notes: See Table 6 for specification details. Instead of existing wells, this table looks at future wells.

Significance:

*

p<0.10,

**

p<0.05,

*** p<0.01.