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Propensity score distribution and common support for propensity score estimation with a kernel matching technique [(a): wheat yield outcome variable; (b): wheat net income outcome variable; (c): maize outcome variables]. Note: “Treated”: “on support” denotes cases in the trainees' category having a suitable comparison from the non-trainees category, and “Treated”: “off support” denotes cases in the trainees' category having no suitable comparison from the same.
