CostThe cost-effectiveness of new or existing measures was difficult to assess, for new or existing measures, largely because of the problem of identifying expenditures by industry that were truly in additional to what would have occurred in the absence of the measure.
Cette complexité s'explique largement par le problème que posait la détermination des dépenses qui, dans chaque industrie, venaient réellement s'ajouter aux frais qui auraient été supportés en l'absence de la mesure en question.