Imputability: The Court of Justice imposes a reinforced obligation to state reasons on the European Commission in the mono-chlorine acetic case (Arkema, Elf Aquitaine)

*This article is an automatic translation of the original article, provided here for your convenience. Read the original article. CJEU, September 29, 2011, Arkema v. Commission, Case C-520/09 P, "Monochloroacetic acid". CJEU, 29 September 2011, Elf Aquitaine v Commission, Case C-521/09 P, "Monochloroacetic acid". It will be remembered that the Monochloroacetic Acid Cartel (MCAA) case gave rise to one of the most emblematic challenges to the application of the presumption of decisive influence (see this column, Concurrences No. 2-2011, p. 104 and Concurrences No. 4-2009, p. 95). An emblematic case highlighting the limits of the presumption of decisive influence when applied to a financial holding company In this case, the Commission considered it justified to apply the presumption