3Bong—Soo Lee, Jungwon Suh.Exchange Rate Changes and the Operating Performance of Multinationals: European Financial Man-agement,2012, 18( 1) : 88.
4Tarik Driouchi,David Bennett.Real options in multinational decision-making: Managerial awareness and risk implications[J].Jour-nal of World Business,2011,46(2): 205.