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

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

Outcome variable	Sample	(1) Treated	(2) Control	(3) Difference	(4) Std. Err	(5) T-stat	(6) Bootstrap Std. Err. ^a	(7) z
Farm income^b
5-Nearest Neighbours	Unmatched	33,082.35	14,923.26	18,159.09	10,456.27	1.74
5-Nearest Neighbours	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
One-to-One Matching	ATT	33,508.46	10,477.18	23,031.28	11,393.29	2.02	11,626.10	1.98 ^**

ATT Average Treatment Effect on the Treated
^{*, **, ***} denote statistical significance at 10%, 5%, and 1% level, respectively
^aBootstrap Standard Errors (Std. Err.) on the difference (with 50 replications)
^b129 (all) untreated and 117 (out of 119) treated households found on the common support region were used

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