99 Hence it is not the decisions made within the individual productive units which have the greatest bearing on the economy, but those made by public authorities and by institutions which tackle the various economic problems on a national or international basis. It is therefore very appropriate, or even necessary, that these public authorities and institutions bring the workers into their discussions, and those who represent the rights, demands and aspirations of the workingmen; and not confine their deliberations to those who merely represent the interests of management.
Source: Mater et Magistra (Vatican.va)