Aaron Sahr (he/him) is visiting professor at Leuphana University in Lüneburg, Germany and heads the Monetary Sovereignty Research Group at the Hamburg Institute for Social Research. The research group brings together researchers whose projects address the political economy of money in historical or contemporary contexts, with a special emphasis to theory building and theory development. Aaron Sahr studied at the Universities of Kassel and Düsseldorf in Germany. His doctoral dissertation, published in 2017, focused on the changing stability structures of the global financial system in the second half of the 20th century from a perspective of practice theory. Since then, he has published books on the distributional dynamics of money creation and the theory and sociology of monetary policy. He teaches on the sociology of finance and money, growth theory, and political economy. His current research project focuses on digital currencies, processes of depoliticization, and an adaptation of balance sheet approaches for the sociology of socio-economic phenomena.