Porter explains that there are five forces that determine industry attractiveness and long-run industry profitability. These five "competitive forces" are
- The threat of entry of new competitors (new entrants) - The threat of substitutes - The bargaining power of buyers - The bargaining power of suppliers - The degree of rivalry between existing competitors それぞれ、下のようなことです。
"ビジ英 Working With a Secretary (6) 4/15-16, 2005"
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