since the early 1980s there have been a number of manufacturers of in board and stern drive marine engines for motorboats stern drive engines are used/

In 1986, Brunswick bought two of the largest boat builders based on its hope that the vertical integration would allow it to synergize engine manufacturing and boat building, resulting in a higher quality, less expensive product. From 1986 to 1997, the price of Brunswick’s engine increased from $4,775 to $4,985, fluctuating both upward and downward in the interim. In 1995, a number of boat builders filed an antitrust action against Brunswick. Did Brunswick’s cost discounting and vertical integration violate any antitrust laws? How should Brunswick defend against these charges? [Concord Boat Corp. v. Brunswick Corp., 207 F.3d 1039 (8th Cir. 2000).]