After World War II, she started working as a publisher and editor again. After her husband's death in 1950, Eucken-Erdsiek worked on publishing his book Grundsätze der Wirtschaftspolitik. She also contributed substantially to the founding of the Walter Eucken Institut in 1954 and was dedicated to maintain personal contact to Walter Eucken's friends and students. The Eucken-Circle met up at their place in Freiburg annually.
