The proper assessment of monopoly power or dominance in platform markets is a hot topic of debate and study, including by competition agencies around the world and the multilateral organizations in which they participate. For example, the International Competition Network is currently gathering...

This note provides an economic approach to antitrust analysis of differential pricing (here, used synonymously with “price discrimination”) and discriminatory refusals to license; grantbacks and cross-licenses; and no-challenge clauses. The analysis applies to both intellectual property...