Mekonnen, Alemu (PhD)Seifemichael, Robel2018-11-162023-11-042018-11-162023-11-042016-11http://etd.aau.edu.et/handle/123456789/14315This study identifies factors that determine decision on adoption of individual/combinations of climate change adaptation strategies. It also investigates whether the type and combination of climate change adaptation practices adopted have significant effect on food security of farm households' and analyzes the possible differences between adopters and non-adopters. The study uses a multinomial endogenous switching regression model of farmers' choice of individual/combinations of climate change adaptation strategies and their impacts on household food security index using panel data collected from 909 farm households in the Nile Basin of Ethiopia. The study has the following three main findings. First, factors that determine the adoption decisions vary across individual/packages of adaptation practices under investigation. Secondly, adoption of climate change adaptation strategies improves the food security of farm households and the highest improvement is achieved when adaptation strategies are adopted in combination rather than in isolation. Lastly, those households who adopt have the advantage of becoming food secure than the non-adopter farm household. Moreover, for farm households who applied the adaptation strategies analyzed, except application of crop rotation in isolation, their food security improved and the likelihood of being food secure increased as farm households adopt practices jointly in their farm plot than adopting in isolation or not adopting at all. Hence, policy makers and other stakeholders should work by promoting the use of combinations of climate change adaptation technologies and also providing households with all the necessary inputs to enhance household food security in the study area. Key Words: Food Security Index, multinomial endogenous switching, Climate Change Adaptation StrategiesenFood Security Indexmultinomial endogenous switchingClimate Change Adaptation StrategiesThesis