good or service. Even if these firms are monopoly or oligopolies in their fields with huge economic rents, if they pass …

The proper assessment of monopoly power or dominance in platform markets is a hot topic of debate and study, including … shares as a proxy for monopoly power; potential barriers to entry such as network effects, data, user switching costs, and …

Are large digital platforms that deal directly with consumers “winner take all,” or natural monopoly, firms? That …? Sometimes the best way to deal with platform monopoly is to break up ownership and management rather than assets. Leaving the …