(15)Whereas, pending the adoption of a Directive on investment services harmonizing inter alia the definition of the concept of regulated market, for the purposes of this Directive and without prejudice to such future harmonization that concept must be defined provisionally; whereas that definition will be replaced by that harmonized at Community level which will give the home Member State of the market the responsibilities for these matters which this Directive transitionally gives to the insurance undertaking's home Member State;