Visitors to the family villa included Stefan George, Hugo von Hofmannsthal, Ernst Ludwig Kirchner, Edvard Munch and Ferdinand Hodler.

[1] After the war ended, Eucken went to Berlin University where he became a full professor in 1921 (thesis: Die Stickstoffversorgung der Welt).

Eventually, Eucken came to distance himself from the conservative movement, in particular because its economic program was not to his liking: protectionism, client politics favouring Agrarier [de] and large industry, völkische social partnership between workers and employers and a positive view of cartels.

[3] After the Kristallnacht pogrom in 1938, Eucken was one of several Freiburg academics who banded together with several local priests in a so-called Konzil, where they debated the obligation of Christians to fight against tyranny.

Bonhoeffer asked Eucken, Adolf Lampe [de] and Constantin von Dietze to write an appendix to a secret memorandum, in which they worked out a post-war economic and social order.

[5] One of Eucken's students, Leonhard Miksch [de] was the author of the law that abruptly abolished price controls (Leitsätzegesetz) in June 1948.

By way of his friend Franz Böhm, Eucken's ideas found their way into the Gesetz gegen Wettbewerbsbeschränkungen [de] of 1957, the foundation of West-German competition policy.

[3] Eucken's ordoliberalism, which is a special German variant of neoliberalism in its traditional definition, argues that the state has the task to provide the political framework for economic freedom to flourish.

[3][6] The idea of ordoliberalism was introduced for the first time in 1937 in Ordnung der Wirtschaft, a periodical published by Walter Eucken, Franz Böhm and Hans Großmann-Doerth [de].