Götz Briefs (born 1 January 1889 in Eschweiler; died 16 May 1974 in Rome) was a Catholic social theorist, social ethicist, social philosopher and political economist, who together with Gustav Gundlach, SJ influenced the social teachings of Pope Pius XI. Biography In 1908, Briefs began to study history and philosophy at the University of Munich. As it was customary in German academic circles at the time, he frequently switched universities, moving in 1909 to Bonn, and later in 1911 to Freiburg. In Freiburg, he became a member of K.D.St. V. Wildenstein Freiburg im Breisgau, a Catholic student fraternity that belong to the Cartellverband der katholischen deutschen Studentenverbindungen. In 1911, he completed his doctoral dissertation with an investigation of the influence of the alcoholic beverage industry on market price structures. He was awarded the highest honor summa cum laude for his dissertation and continued on the topic of profits with his Habilitation on the effect of average profits on the economy in 1913. In 1919, he was named Professor for economics at the Albert-Ludwigs-Universität in Freiburg. Two years later 1921 he accepted a professorship at the Julius-Maximilian-Universität in Würzburg. In 1923 he returned to Freiburg and in 1926 to Berlin at the Technische Hochschule. In 1928, he founded an Institute for Industrial Sociology in Berlin. After the National Socialists won the elections in Germany and took over the government, he, like many other outspoken Catholics, lost his career and was forced to leave his native country. Göetz Briefs emigrated to the USA, where he found a teaching position as guest professor at the Catholic University and later full professor at the Jesuit Georgetown University in Washington, D.C. After being widowed during the war years, he married Elinor Castendyk in 1951, who later became known for her work on and translations of Romano Guardini. After his retirement, the couple lived in a mountain retreat near the Trappist monastery Holy Cross Abbey in Berryville in Clarke County, Virginia, which he visited with his wife on a daily basis. Briefs influenced the social teachings of the Catholic Church and was considered a ghost writer of the encyclical Quadragesimo anno of Pope Pius XI with his friend, the Jesuit Gustav Gundlach, with whom he spent his annual Summer vacations together. On 16 May 1974 Briefs died in Rome after a short illness. He is buried in the Vatican's Campo Santo Teutonico. With Gustav Gundlach, Theodor