Some thoughts on the latest developments on the #DigitalMarketsAct. According to a presentation that has been floating around Brussels for a few days (made public today by @LauKaya ), size, dependency, and entrenchment could form the criteria to define gatekeeper platforms. 1/5 
The same presentation also gives an overview of the evidence base in support of the #DMA. Let’s see if there’s something in these reports that could shed some light on the 3 possible criteria for gatekeepers. 2/5
Well, it turns out that the Observatory’s expert group has dealt in depth with the first two possible criteria: size and dependency. So how to measure size? Seems it is hard to get around the number of users. 3/5
What about dependency? The Observatory argues business users’ share of revenue from a particular platform and the degree of multi-homing among true substitutes are parameters to look at. 4/5
If this is indeed the direction of travel for the #DMA, it’s hard to see how we will end up with the alleged 20 platforms in scope. And that’s good. This needs to be a targeted instrument. See below for a more refined argumentation. 5/5 medium.com/a-world-worth-…
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