Praxeology

Praxeology is the science of human action. The term was coined and defined as "The science of human action" in 1890 by Alfred Espinas in the Revue Philosophique, but the most common use of the term is in connection with the work of Ludwig von Mises and the Austrian School of economics.

Purposefulness of action

Praxeology is the scientific study of human action, which is purposeful behavior. A human acts whenever he uses means to achieve an end that he or she subjectively values. Human action is thus teleological or intentional; a person acts for a reason. Therefore not all human behavior is action in the praxeological sense: purely reflexive or unconscious bodily movements (such as coughing when exposed to tear gas) are not examples of action. Praxeology starts from the undeniable axiom that human beings exist and act, and then logically deduces implications of this fact. These deduced propositions are true a priori; there is no need to test them in the way that a physicist might test a proposed "law" of Nature. So long as a praxeological statement has been derived correctly, it must necessarily contain as much truth as the original axioms.

Categories

The categories of praxeology, the general, formal theory of human action, as outlined by Murray Rothbard"

• A. The Theory of the Isolated Individual (Crusoe Economics)
• B. The Theory of Voluntary Interpersonal Exchange (Catallactics, or the Economics of the Market)
  • 1. Barter
  • 2. With Medium of Exchange
    • a. On the Unhampered Market
    • b. Effects of Violent Intervention with the Market
    • c. Effects of Violent Abolition of the Market (Socialism)
• C. The Theory of War--Hostile Action
• D. The Theory of Games (e.g., von Neumann and Morgenstern)
• E. Unknown

See also

• Praxeology in Wikipedia
• What the Hell is Praxeology? on Praxeology.net
• Praxeology: The Methodology of Austrian Economics by Murray N. Rothbard