CEVAP:

When the number of buyers is small, and threaten to be rival producers, and when products sold to buyers are a significant percentage of a buyer’s final costs, and when buyers purchase large quantities, and the purchased product is unimportant to the final quality or price of a buyer’s products, the bargaining power of buyers is high. If the suppliers’ industry is dominated by a small number of companies and suppliers threaten to be rival producers, companies are not important customers for suppliers. When there are few good substitutes, which can be used instead of others, and suppliers do not depend heavily on the industry for a large portion of their revenues, the bargaining power of suppliers is high.