Germany is considering new competition laws in a bid to cut internet conglomerates - none of which are German - down to size.
The report commissioned by the government focuses, in particular, on the rapid growth of such internet giants as Amazon, Facebook and Google, and the overweening market power they now enjoy.
In a bid to prevent such companies from becoming monopolies, even before they achieve scale, the initiative could include tougher rules blocking big players from taking over smaller rivals, according to Reuters.
It follows a pledge by Chancellor Angela Merkel's coalition to curb big US internet companies which, German lawmakers believe, have become too powerful.
"My goal is to make our competition law more effective," said German economy minister Peter Altmaier.
"In doing so we must find the right balance between the growth chances of German and European platforms and preventing the abuse of market power."
Altmaier commissioned a 173-page study calling for the German antitrust regulator to be given powers to act before a company reaches a critical "tipping point" on the way to becoming a powerful monopoly.
This - the study claims - could include cracking down on attempts to prevent "multihoming", an act that required a platform company's business partners to work exclusively with it, but not with any of its competitors.
In the study's second proposal, the authors argue that the regulator should be able to stop big players from taking over smaller rivals as part of a strategy to reduce competition.
The report also contains a proposal detailing a new "data-for-all" law that would require overbearing platform companies to share the data that fuels them. This would, the authors say, enable competitors to train their software algorithms to a similar standard to the market leader and help to re-open a monopolised market to competition.
"We must support an innovative data policy and talk about new ideas - one would be to require interoperability," said senior lawmaker in Merkel's conservative party, Nadine Schoen.
The next step will see Altmaier setting up a commission to draft reforms to Germany's competition law based on recommendations of the report. It's not clear whether the German government plans to lobby Brussels to make such policies EU-wide.
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