JAPAN-COMPANY-TOSHIBA-ACCOUNTING-EARNINGS

This picture taken on July 21, 2015 shows Masashi Muromachi, interim president of Toshiba Corp, taking part in a press conference in Tokyo. Toshiba's billion-dollar accounting scandal has shone a light on a corporate culture in Japan still beset by collusion in its senior ranks, unquestioning employees and poor external controls, experts say. About half Toshiba's board resigned on July 21 with president Hisao Tanaka and vice chairman Norio Sasaki -- also a former president -- the most senior to quit their posts. AFP PHOTO / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)