Methodological Evaluation of Smallholder Farm Systems in Ethiopia Using Quasi-Experimental Design for Adoption Rate Measurement

Smallholder farming systems in Ethiopia are pivotal to the country's agricultural productivity and rural livelihoods. A longitudinal study employing a randomized controlled trial (RCT) supplemented by qualitative interviews to assess changes over time in adoption rates of conservation agriculture techniques. In the first year post-intervention, an average increase of 25% in the use of cover crops was observed among randomly selected farmers compared to controls. The quasi-experimental design successfully captured variations in adoption patterns across different socio-economic groups and demonstrated significant differences over time. Future studies should incorporate more diverse interventions and longer follow-up periods to enhance generalizability and robustness of findings. The empirical specification follows $Y=\beta_0+\beta^\top X+\varepsilon$, and inference is reported with uncertainty-aware statistical criteria.