THE DIVERSIFICATION IN THE SOCIO-ECONOMIC ORGANIZATION AND the growth of the political system have increased the number of instances of decision-making and intensified the relations between social and political forces. Parties and pressure groups are not enough in themselves to channel the interests, ideologies, and stresses, originating in the social system, into the political system. Nevertheless, during the last forty years, other, less familiar channels have broadened considerably and of these it is what we call the consultative councils which have made the greatest impact. So much has their importance grown in recent years that they must be considered as a mechanism of systemic interaction, comparable in weight to those of the pressure groups or parties. The consultative councils have, in fact, become a major cog in the political system and any attempt to exclude them is doomed to failure.