Pope John XXIII
Mater et Magistra §141
Mater et Magistra: On Christianity and Social Progress
141 Moreover, the time has come to promote in agricultural regions the establishment of those industries and services which are concerned with the preservation, processing and transportation of farm products. Enterprises relating to other sectors of the economy might also be established there. In this case the rural population would have another means of income at their disposal, a means which they could exploit in the social milieu to which they are accustomed.
Source: Mater et Magistra (Vatican.va)