nice writeup https://sweettalkconversation.com/2015/01/01/ordoliberalism-and-the-myth-of-laissez-faire/amp/
Tyler Cowen advocates state-capacity libertarianism https://marginalrevolution.com/marginalrevolution/2020/01/what-libertarianism-has-become-and-will-become-state-capacity-libertarianism.html
Cartels in pre-war Germany, from Competition Policy in Germany
1500-Pound Goat 