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Table 4 Nearest Neighbour Matching Results of Average Treatment Effect on the Treated (ATT)

From: Adoption of improved agricultural technology and its impact on household income: a propensity score matching estimation in eastern Ethiopia

Outcome variable Sample (1) Treated (2) Control (3) Difference (4) Std. Err (5) T-stat (6) Bootstrap Std. Err. a (7)
z
Farm incomeb  
5-Nearest Neighbours Unmatched 33,082.35 14,923.26 18,159.09 10,456.27 1.74   
ATT 33,508.45 13,772.55 19,735.91 11,266.41 1.75 10,591.74 1.86 *
One-to-One Matching Unmatched 33,082.35 14,923.26 18,159.09 10,456.27 1.74   
ATT 33,508.46 10,477.18 23,031.28 11,393.29 2.02 11,626.10 1.98 **
  1. ATT  Average Treatment Effect on the Treated
  2. *, **, *** denote statistical significance at 10%, 5%, and 1% level, respectively
  3. aBootstrap Standard Errors (Std. Err.) on the difference (with 50 replications)
  4. b129 (all) untreated and 117 (out of 119) treated households found on the common support region were used