Scholastic Economic Thought and Just Price Theory

Scholastic economic thought emerged in the medieval universities as a synthesis of Christian theology and Aristotelian philosophy, with a particular focus on the moral dimensions of commerce. Central to this tradition is the notion of the just price, conceived as the ethical benchmark that ensures transactions contribute to the common good and respect the dignity of all parties. Thomas Aquinas articulated the just price as a fair equivalence that protects both buyer and seller from exploitation, grounding its validity in natural law and the virtue of justice. His successors, including Duns Scotus, Francisco Suárez and later Renaissance commentators, refined the concept by recognising factors such as market conditions, scarcity and the legitimate pursuit of profit within moral limits. Debates on usury and interest further shaped scholastic economic theory by delineating permissible financial practices and condemning those deemed inherently unjust. Over time, these ideas influenced early modern economic thought by emphasising ethical constraints on market mechanisms and highlighting the social responsibility of economic actors.

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Scholastic Economic Thought and Just Price Theory publication trend

The graph below shows the total number of articles in scholastic economic thought and just price theory across all publications each year (not limited to Nature Index journals).

Technical terms

Just price: A normative price level prescribed by moral and legal norms to ensure equitable exchange.

Scholasticism: The medieval method of critical thought combining theological doctrine with Aristotelian logic.

Natural law: The philosophical principle that moral norms derive from human nature and reason.

Usury: The practice of charging interest on loans, traditionally condemned when deemed excessive or exploitative.

Commutative justice: The virtue governing fair exchange between individuals based on equality and reciprocity.

References

1. Doctrine of "Fair Price” by Thomas Aquinas: background, laws of development and specific interpretation. Journal of Institutional Studies (2015).
2. Przedsiębiorca w dynamice paradygmatu „homo agens” w świetle nauki Tomasza z Akwinu i myśli Ludwiga von Misesa. Tarnowskie Studia Teologiczne (2021).
3. Escolástica renacentista y recepción de la doctrina aristotélica sobre lo justo natural: Philipp Melanchthon y Francisco Suárez. Bajo Palabra (2021).