Evidence shows that the rate of input use is decisive for productivity growth; the percentage ofrnfarmers who applied fertilizer has slow progress in Ethiopia. Studies suggested possible ways ofrnaddressing in the limitations of understanding the empirical knowledge and methods. This studyrnanalyzed the impact of agricultural input use to augment the productivity of major crops. A panelrndata of (2011, 2013, and 2015) acquired from the Ethiopian socio-economic survey was used. Itrnwas analyzed using the basic fixed effect model and dose-response function under exogenous andrnendogenous treatment models. In the exogenous and endogenous treatment cases, householdsrnapplying fertilizer have achieved actual yields with different levels of higher outputs than theirrncounterparts. In endogenous treatment, the household applying fertilizer harvested higher outputrnthan those in the counterfactual condition. Though factors affecting the products of crops have arnsignificant effect on their productivity, the level of its impact varies in both exogenous andrnendogenous treatment approaches. On average, its productivity was 6.16 per year and exhibitedrna clear upward trend for the first two rounds. Although the upward trend declined from 2013-rn2015, the overall productivity increased in the survey years. Moreover, inputs: fertilizer, seed,rnlabor force, farm capital use have a positive effect on aggregate outputs of considered crops.rnFindings pinpoint the policy that farmers should focus on intensity use of inputs and improvernproduction.