54Accordingly, as follows from paragraph 49 of this judgment, the compatibility of an information exchange system, such as the register, with the Community competition rules cannot be assessed in the abstract. It depends on the economic conditions on the relevant markets and on the specific characteristics of the system concerned, such as, in particular, its purpose and the conditions of access to it and participation in it, as well as the type of information exchanged — be that, for example, public or confidential, aggregated or detailed, historical or current — the periodicity of such information and its importance for the fixing of prices, volumes or conditions of service.
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