Acknowledgments

My deepest and heartfelt thanks goes to Tilahun Teklu (PhD), my research advisor, whose constructive comments and suggestions were a guiding light having an immense contribution towards the successful completion of this paper. Most of all, apart from being a phenomenal lecturer, bestowed with wisdom, perseverance and an undying commitment, who has made the unpleasant stay I had at the MBA program turn out to be enjoyable, his exceptionally astounding and philosophically deep rooted lectures were the sources, including the idea behind this study, of priceless research ideas. Next, but second to none, my deepest gratitude goes to the “Love of my Life ” Lidia Bekele, for her unsurpassed commitment and determination in dealing with all my affairs. Had it not been for her strong compassion and an unshakable faith the agony of trying moments of life would have tormented me. Being with her is the very best thing that ever happened in my life! Last, but not by any means least, I want to extend my sincerer thanks to Bewketu, Daniel (Banj),Dejen,Biruk,Mersea,Danieal (demedeme), and Yeshiti for all the positive comments, supports and cooperation you gave me while doing this researc