Austrian School, focusing on the study of property, market-chosen law, slippery-slope analysis, entrepreneurship, institutions … Nostrand. -- Hume, David (1998 [1751]), An Enquiry Concerning the Principles of Morals, ed. Tom Beauchamp, Cambridge: Cambridge … Hülsmann (2004), 'The A Priori Foundations of Property Economics', Quarterly Journal of Austrian Economics, 7 (4), Winter, 41 …