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d. 銷售人員個人信息 ? 客戶情報系統(tǒng) : 。 。 。 ? geographic scope(single region or country versus global)。2021/11/12 1 : ; :; : 2021/11/12 2 Who are your rivals? ? A petitive arena may be as broad as an industry or as narrow as product market. Usually, the tactical decision needs narrow definition of petitive arena, but strategic decision needs broader one. The arena definition is determined by choice among four dimensions ? the array of product or service categories(single product versus broad category)。 ? the class/segments of customers(single or multiple segments)。 ? number of activities in the value chain(many versus few) : ; :; : 2021/11/12 3 Identifying arenas ? One of the key ways a petitive arena is to examine the patterns of substitution: supplyside and demandside perspective. ?