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.
Average treatment effects.
| Matching methods | Treatment group | Control group | Net effect | Bootstrap standard error | t-value |
|---|---|---|---|---|---|
| k-nearest neighbor matching | 8.710 | 8.970 | −0.259** | 0.119 | −2.17 |
| Kernel matching | 8.710 | 3.968 | −0.509*** | 0.124 | −5.06 |
| Radius matching | 8.710 | 3.936 | −0.504*** | 0.127 | −4.94 |
The standard error in column 5 is obtained by bootstrapping 500 times. ** and *** indicate significance level at 5% and 1%, respectively.
