Shinohara, Sobee; Morikawa, Hiroyuki; Tsuji, Masatsugu - 2016
Smartphones such as iPhones and Android was introduced to the market around 2007-9 in various OECD member countries. Since then, the transformation of the market was observed, which include (i) rapid growth of mobile broadband (3G+4G); (ii) severer market competition; and (iii) upheaval of...