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Table 8 Results of propensity score matching analysis, for determining the effect of use of CSP

From: Productivity and food security effects of using of certified seed potato: the case of Kenya’s potato farmers

Matching algorithm Nearest neighbor Radius Kernel-based
Outcome variables ATT t stat ATT t stat ATT t stat
fungicide 13.6 0.78 8.2 0.99 8.16 0.97
insecticide 6.6** 2.36 6.2** 2.78 6.53** 2.83
yield 9520.7** 2.24 2975.4** 2.12 3322.7** 2.33
fertilizer 234.5 0.99 31.2 1.02 43.0 1.40
foodsec −2.52*** −3.25 −2.17*** −2.86 −2.25*** −3.90
  1. *, **, and *** significant at 10, 5, and 1%, respectively