Arthur Nussbaum studied after high school three years from 1894 to 1897 jurisprudence in Berlin, was founded in 1898 and practiced his doctorate after Assessorexamen few years the profession of lawyer from. Alongside he wrote numerous legal books and essays. Following the acquisition of Venia Legendi he taught from 1914 commercial, banking and securities law at the University of Berlin. From 1921 taught due to the Nazi occupation Civil Service Act until his dismissal in 1933 and he studied there as an Associate Professor. A similar fate was suffered also his colleague James Goldschmidt, Martin Wolff, Ernst Rabel, Fritz Schulz, Julius Flechtheim, Max Rheinstein, Julius Magnus and Max Alsberg. By 1934, he still belonged to the editorial board of the civil journal Archive for the civilistische practice ( AcP ).
Arthur Nussbaum was a member of the Main Board in the Central Association of German Citizens of Jewish Faith.
In 1934 he had because of Nazi racial policy in the United States to emigrate and taught from 1934 to 1951 at Columbia University, from 1939 with a research professorship. In 1940 he received the U.S. citizenship.
- German mortgage beings J.C.B. Mohr, Tübingen 1913
- The legal fact research. Their significance for science and education, JCB Mohr, Tübingen 1914
- Textbook of the German mortgage system, together with an introduction to the general land register law, JCB Mohr, Tübingen 1921
- German Private International Law. With special consideration of the Austrian and Swiss law, JCB Mohr, Tübingen 1932
- Money in the law, 1939
- Principles of private international law, 1942
- A Concise history of the law of nations, Macmillan, New York 1947, 2nd expanded edition, 1954; German, authorized translation by the author of Herbert Thiele Fredersdorf under the title history of international law in summary representation, CH Beck, Munich / Berlin 1960