> What Apple (and Amazon) are being accused of is abusing their market power to root out competition. But market power is well defined as the ability to raise

> What Apple (and Amazon) are being accused of is abusing their market power to root out competition. But market power is well defined as the ability to raise the market price of a good above its marginal cost while still earning a profit. People seem to be confusing market power with predatory pricing, which is a very different concept.