ACME Corp. sells hammers and other tools to Blue's Hardware Store. Suppose that ACME, which is the only supplier of a specific type of hammer that Blue's sells, informs Blue's that it will have to purchase certain other products from ACME if it wants to continue receiving the hammers. Blue's is dismayed because these other products are costly. It has no need for these products. ACME is attempting to get Blue's to enter into .