John Paul II and the Moral Ecology of Markets
John Paul II has addressed the morality of economic life but has not directly addressed the question: Under what conditions would markets be just? An analysis of the "moral ecology" of markets identifies four elements toward an adequate answer: legal restrictions on self-interest in markets, the provision of essential goods and services, the morality of individuals and groups, and a network of voluntary association.
Finn, Daniel K. "John Paul II and the Moral Ecology of Markets." Theological Studies 59, no. 4 (December 1998): 662-679.