70 Investments, for their part, must be directed toward procuring employment and sufficient income for the people both now and in the future. Whoever makes decisions concerning these investments and the planning of the economy—whether they be individuals or groups of public authorities—are bound to keep these objectives in mind and to recognize their serious obligation of watching, on the one hand, that provision be made for the necessities required for a decent life both of individuals and of the whole community and, on the other, of looking out for the future and of establishing a right balance between the needs of present-day consumption, both individual and collective, and the demands of investing for the generation to come. They should also always bear in mind the urgent needs of underdeveloped countries or regions. In monetary matters they should beware of hurting the welfare of their own country or of other countries. Care should also be taken lest the economically weak countries unjustly suffer any loss from a change in the value of money.
Source: Gaudium et Spes (Vatican.va)