The use of economics to study law was pioneered by the Austrian School of Economics. The nineteenth century founders of the school believed that economics could contribute to understanding the spontaneous development of common law as well as the nature of legal rights. For this insightful two-volume collection Mario Rizzo has selected key papers from today's vibrant Austrian School, focusing on the study of property, market-chosen law, slippery-slope analysis, entrepreneurship, institutions, decentralized social knowledge, and the evolution of legal institutions. These volumes represent the cutting-edge Austrian contributions to economics and will be an essential reference source for both students and researchers.