Question VIII: Just Exchange and the Just Price

Aristotle, Ethics, bk. 5, chap. 8; Politics, bk. 1, chap. 9; St. Thomas, commentary on Book V of the Ethics, lect. 9, and commentary on Book I of the Politics, lect. 7; II-II, q. 77; John Duns Scotus, commentary on IV Sentences, dist. 15, q. 2; Molina, vol. 2, tract 2, disp. 347, 348; Lessius, chap. 21, nos. 17-81; C. de Lugo, vol. 2, disp. 26, sects. 4 and 7; Funk, Recht und Moral in Bezug auf das Wirthschaftsleben [Right and Morality in Relation to Economic Life] (Theologische Quartalschrift [Theological Quarterly], Tübingen, 1869); Waffelaert, On Justice, vol. 1, nos. 596, 608-619; vol. 2, no. 208; Crolly, Disputations on Justice and Right, vol. 2, disp. 11; Cathrein, Moral Philosophy, pt. 2, sect. 1, bk. 5, chap. 2, art. 3, p. 367, § 2, and bk. 4, chap. 2, art. 1, p. 130, § 2, III, b, 3rd ed.; H. Pesch, Zinsgrund und Zinsgrenze [The Ground and Limit of Interest] (Zeitschrift für katholische Theologie [Journal of Catholic Theology], Innsbruck, 1888); Cauwès, Course of Political Economy, vol. 1, nos. 157, 158, 189-203; Liberatore, Principles of Political Economy, pt. 1, chap. 1, arts. 2-4; V. Brants, Economic Theories in the Thirteenth and Fourteenth Centuries, chap. 5, chap. 6, § 4, and chap. 8, § 2; Antoine, Course of Social Economy, chap. 11, arts. 1-4; C. Ilgner, Commentary on the Opinions of St. Antoninus concerning Value and Money; K. Marx, Capital (French trans., bk. 1, sect. 1), vol. 1, chaps. 6, 7, and vol. 3, sects. 1 and 2.