With respect to Austrian economic theory proper he hasn't added that much apart from rigourously defending the a priori method. He did have an interesting dispute with Block on Indifference in economics which you may be interested in.Neodoxy wrote: ↑Thu Apr 05, 2018 5:42 amCan anyone tell me what they see Hoppe's central theoretical contributions as being? I have read almost nothing by him. I know the basic argument against democracy. Beyond that he seems to do some rear guard action for the cause of Austrianism and parts of his thought seem somewhat instrumental to the alt-right.
He's best described as a political economist and an-cap theorist rather than an economist - at Las Vegas he taught comparative economic systems.
A Theory of Socialism and Capitalism splits various governmental systems up and investigates the incentive structure they bring. The most famous chapter is the one on Argumentation Ethics which Hulsmann interprets as the final logical defence of demonstrated preference welfare theory.
Following this Democracy the God that Failed is important not just because of the anti-democratic argument but that he raises the point that political institutions prior in mediaevel Europe were more conducive capital creation than the 20th century. Hence his interest to reactionary thought along with his insight that private property implies exclusion so the view of planet AnCap having free movement of people doesn't follow. Further that political institutions were effectively no better in the 18th century than the Middle Ages it undercuts the liberalisation theory of the economy in explaining the Industrial Revolution.
This leads to his final book A Short History of Man in which he uses economic tools to explain the origin of family and thence to defend the cold weather hypothesis, that people groups who survived cold climates required greater levels of intelligence. This increase in average intelligence was crucial for the industrial revolution to occur.
If you're family with the democracy arguments I would say read:
A Theory of Socialism and Capitalism
Natural Order, the State and the Immigration Problem - a paper in the JLS
A Short History of Man
Overall that's under 300 pages of reading and covers his main contributions.