Pacem in Terris §130

¹³⁰ Recent progress in science and technology has had a profound influence on man's way of life. This progress is a spur to men all over the world to extend their collaboration and association with one another in these days when material resources, travel from one country to another, and technical information have so vastly increased. This has led to a phenomenal growth in relationships between individuals, families and intermediate associations belonging to the various nations, and between the public authorities of the various political communities. There is also a growing economic interdependence between States. National economies are gradually becoming so interdependent that a kind of world economy is being born from the simultaneous integration of the economies of individual States. And finally, each country's social progress, order, security and peace are necessarily linked with the social progress, order, security and peace of every other country.