Jorge Padilla, Joe Perkins, Salvatore Piccolo, 22 October 2020

Alleged market abuse by technology firms with large bases of loyal customers has become a pressing policy concern. This column argues that significant consumer harm can result from the attempts of these ‘gatekeeper platforms’ to gain revenue from their installed bases of platform users at the expense of third-party firms offering complementary services. The authors suggest possible ways forward for competition authorities currently considering new regulation of digital markets.

Cristina Caffarra, Federico Etro, Oliver Latham, Fiona Scott Morton, 04 June 2020

There is a developed public discourse on the need for more enforcement, regulation and legislation of digital platforms. Regulating ‘gatekeeper platforms’ has emerged as a major plank of the new European Commission mandate, with a consultation process underway this week for a plan to introduce both ex-ante regulation and a new market investigation tool with quasi-regulatory powers. This column asks how economists can contribute to rationally progressing the debate, so that it is not based on subjective priors, but uses applied theory to make testable predictions, and data to discriminate between theories.

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