Beyond Isolated Technologies: Innovation Package Intensity Transitions through Cluster-Based Agricultural Innovation Systems and Their Impacts on Smallholder Rice Transformation: Panel Evidence from Ethiopia

Rice is a strategic crop in Ethiopia, contributing to food security, rural livelihoods, and import substitution. However, studies on agricultural innovations have predominantly evaluated individual technologies, providing limited understanding of how complementary technological and institutional innovations interact to generate farm and household benefits. This study addresses this gap by conceptualising innovation adoption as an Innovation Package Intensity (IPI), recognising that productivity gains and livelihood improvements arise from the integrated uptake of multiple complementary innovations implemented through a cluster-based agricultural innovation system rather than from isolated technology adoption.The study uses balanced panel data from 400 smallholder rice-producing households (800 household-year observations) surveyed before and after the implementation of a cluster-based agricultural innovation programme during the 2022 and 2024 production seasons in Ethiopia. Household-fixed effects models were first employed to identify the technological and institutional innovation components most strongly associated with farm and household outcomes. Subsequently, a composite IPI index was constructed using Principal Component Analysis (PCA) and its impacts on productivity, commercialisation, and household welfare were estimated using household fixed-effects Difference-in-Difference (FE-DiD) models.The results reveal substantial heterogeneity in programme impacts of innovation package intensity. Relative to the households in the low-IPI group, those attaining high-IPI increased rice productivity by 2,035 kg ha−1, net income by ETB 89,334 ha−1, and marketed surplus by 831 kg per production season following the cluster-based innovation intervention. Transition analysis further shows that 60.8% of households progressed to higher IPI levels, demonstrating the effectiveness of the cluster-based innovation system in promoting uptake of integrated innovation. Component-level estimates identify quality seed, fertiliser management, row planting, and bunding as the principal drivers of improved farm performance, whereas package-level analysis demonstrates that the largest improvements were achieved through the complementary adoption of multiple technological and institutional innovations rather than any single intervention.This study advances the agricultural innovation systems literature by introducing Innovation Package Intensity (IPI) as a framework for evaluating integrated agricultural innovations and by demonstrating how cluster-based communication, learning, and institutional coordination facilitate the transitions toward higher innovation intensity. The findings provide empirical evidence that integrated innovation pathways generate substantially greater improvements in productivity, commercialisation, and farm income than isolated technology promotion, offering practical guidance for designing coordinated extension and innovation policies that accelerate sustainable smallholder agricultural transformation.