Terada, Shinichiro - 2012
handset manufacturers in U.S.A, Europe, and Japan. We choose the "event study" methodology to evaluate the impact of iPhone … carriers and the handset manufactures in U.S.A, Europe and Japan?" The results show that the impacts of iPhone present …, 1) the results of event study show that the iPhone-affiliated-carriers, such as AT&T, Telefonica and Soft Bank, are …