NOTAS: | "The paper analyses firms' motivations and the competitive effects of digital conglomerates with the relevant industrial organisation and strategic management literature. On that basis, it makes recommendations to improve the methodologies and modes of operation of EU competition policy in the digital sector. The paper then shows that the pro- and anti-competitive effects of conglomerates are amplified in the digital economy. Regarding the anti-competitive effects, bundling may allow big platforms to envelop their smaller competitors in adjacent markets, raise entry barriers for innovating entrants or soften competition by increasing differentiation. The control of key sharable inputs may increase the incentives to refuse access or decrease the costs of an anti-competitive product proliferation strategy. Those effects are even stronger when the digital conglomerate has achieved the position of gatekeeper for access to customers or to specific products. Those anti-competitive effects should always be balanced with the positive welfare effects of digital conglomerates that are equally amplified. Moreover, conglomerate acquisitions of innovative start-ups may in some circumstances lead to a decrease in innovation, which is detrimental to welfare." |