(from the first link)
“For example, the definition of human action is not that people are engaged in all sorts of activities, but that they are engaged in purposeful activities--purpose gives rise to an action.”
What is economics? Two words: human action
http://www.tigerboard.com/boards/view.php?message=17803420
Austrian school of economics recognizes that economics is
descriptive and not
predictive.
https://mises.org/what-austrian-economics
https://mises.org/austrian-school/austrian-economics-overview
Praxeology is the is the study of human action, based on the notion that humans engage in purposeful behavior, as opposed to reflexive behavior like sneezing and unintentional behavior.
http://www.tigerboard.com/boards/view.php?message=16098862