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South Korea's top court raises bar for self-preferencing in landmark Naver ruling

By Jenny Lee ( October 24, 2025, 05:48 GMT | Comment) -- South Korea's top court has made self-preferencing cases substantially harder to win, overturning Naver's sanctions and ruling that suspected market-power leveraging proves nothing without rigorous causal evidence linking specific ranking designs to anticompetitive intent and measurable market harm. The landmark decision fundamentally recalibrates platform regulation — away from presumed harm toward demanding empirical proof —with implications likely extending well beyond South Korea's borders.South Korea’s top court has spoken for the first time on algorithmic self-preferencing, and the standard it imposes is unmistakably exacting....

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