Clarify and simplify. The European Commission's reform of the competition policy will be a profound one, not only in terms of the rules applicable to businesses (ban on cartels and abuses of dominant positions, checks on mergers, see this column the day before yesterday), but also in the field of State aid However, although the revision as it relates to businesses is already fully in force, new rules on aid will be phased in by the end of 2006. The Commission's document on this subject...