Digital Platforms and Economics

Digital platforms like app stores, payment networks, and social media operate as two-sided markets, simultaneously serving distinct groups—developers and users, buyers and sellers—whose value to each other grows as participation on each side increases, a phenomenon economists call network externalities. Understanding how these feedback loops shape competition, pricing, and the emergence of dominant technology standards has become central to explaining why platform markets so often tip toward monopoly or tight oligopoly rather than conventional equilibrium. Researchers are actively working out how firms can enter or disrupt incumbent platforms despite entrenched network effects, and how regulators should respond when the same mechanisms that produce consumer value also insulate incumbents from competition. Open questions include how ecosystem innovation unfolds when complementors and platform owners have partially conflicting incentives, and whether standard tools like price discrimination can be used to either subsidize adoption or entrench lock-in in ways that harm market efficiency.

Works

67,181

Total citations

621,315

Keywords

Two-Sided MarketsPlatform CompetitionNetwork EffectsEcosystem InnovationMarket DynamicsTechnology Standards