This study is a synthesis of an exploration on the different documents of Vatican 11 such as the different outlines on “Gaudium et Spes”, “Populorum Progressio”, A Call to Action, Evangelization in the Modern World, “On Human Work” and “Justice in the world” extracted from The Rich Heritage of Catholic Social Teaching written by Schultheis, et. al.  The documents interprets the evolution of papal social teaching on economic justice from the “class” concern of Leo X111 and Pius X1, dealing with the maldistribution of wealth and power in Western countries, to the world concern of John XX111, Gaudium et Spes, and Paul V1 dealing with the same maldistribution on the global level