Strategy and Competitive Analysis

Industries don't make money equally. Some sectors are chronically profitable, others are chronically brutal, and the difference has less to do with how hard companies work and more to do with the structural forces that determine where profit ends up. Porter's Five Forces is the framework for thinking about this: it maps the five sources of competitive pressure that collectively determine how much of the value an industry creates actually stays inside that industry versus getting extracted by suppliers, buyers, or competitors.

The insight that makes Five Forces useful is that barriers to entry — the thing most people focus on — tell you almost nothing about profitability by themselves. High barriers protect incumbents from new competitors, which sounds great. But if your suppliers have the power to raise your input costs at will, or if your buyers can squeeze your prices because they're bigger than you and don't need you specifically, those barriers just mean you're trapped in an industry where you can't leave but also can't earn adequate returns. You're protected from outside competition while getting crushed from both sides.

The pharmaceutical distribution business is a textbook case. Nobody new is getting in — regulatory requirements, capital intensity, and long-term hospital contracts make entry nearly impossible. But that protection is almost worthless, because the drug manufacturers above distributors in the supply chain and the hospital purchasing organizations below them both have enormous negotiating power. The distributors are a necessary link in the chain that gets paid almost nothing for being necessary.

Now here's where it gets harder in practice: Five Forces is a snapshot, and the forces that matter most are the ones that are changing.