This study examines the relationship between multinationality and the performance of Japanese manufacturing companies during the period 1999-2008 by using geographic segment information. Despite the enormous interest in and importance given to multinationality from the academic and business worlds, prior findings about the multinationality-performance relationship are conflicting and inconsistent. The overall results of the present study show that multinationality has a positive impact both on accounting performance and on market-based performance. In additional tests, Japanese electric and...