Fitsum Greener Journal of Agricultural Sciences Vol. 7 (10), pp. 294-303, December 2017. ISSN: 2276-7770 Research Article Manuscript Number: 112717174 (DOI: http://doi.org/10.15580/GJAS.2017.10.112717174) Impact of Improved Wheat Varieties Adoption on Productivity: Disparity Among the Major Administrative Regions of Ethiopia Fitsum Daniel Ethiopian Institute of Agricultural Research, Addis Ababa, Ethiopia. Abstract This study examines the regional disparity in the impact of adoption of improved wheat varieties on productivity using 1,611 sample farm households in four major administrative regions of Ethiopia. Propensity score matching (PSM) technique was employed since it is an increasingly utilized standard approach for evaluating impacts using observational data. It is found that adoption of improved wheat varieties doesn’t have homogenous positive and significant impact on productivity growth in all of the administrative regions considered. 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