A recent wave of large vertical mergers presents a challenge to established theories of vertical integration. The large mergers that have occurred in the pharmaceutical industry between drug manufacturers and companies that manage drug insurance benefits (such as Merck's acquisition of Medco)...

Apple's economic role in the Publisher conspiracy to increase Amazon's below cost pricing of e-books is examined in a hub-and-spoke conspiracy framework. The Publishers conspired because of their concern that Amazon's low prices would adversely affect physical book demand and prices and also...