Here, I have collected some talks of general interest that I have given in the past years.

- Frank Knight, the Economics of Uncertainty, and 21st Century Finance

A talk about Frank Knight and his relevance for today's research at a nice conference during covid times commemorating the centenary of publication of Frank H. Knight’s "Risk, Uncertainty, and Profit" and John M. Keynes’ "A Treatise on Probability". - Approaches to Knightian Uncertainty in Finance and Economics

A lecture on Knightian uncertainty and the relationship between decision theory, financial mathematics and statistics, delivered at the University of Oslo in March 2023. - Total smart und auch noch reich - hohe Mathematik in der Wirtschaft

A talk in German given in the Year of Mathematics 2008. It explains Mathematical Finance to a general audience. It also contains some words on our consulting of Vodafone during a German frequency auction. - Mathematics and Economics

contains an overview of my own work; this talk was given to a Mathematics audience when I was appointed member of the Mathematics Department at Bielefeld University - Knightian Uncertainty in Economics and Finance

explains the use and the need to cope with model uncertainty and ambiguity in the social sciences - Schuld und Chance: Wissenschaft, Banken und Politik in
der Krise

A public lecture ("Öffentlicher Vortrag des Instituts für Mathematische Wirtschaftsforschung") on the role of science, banks, and politics during the crisis given in January 2012 at Bielefeld University - Are we Guilty?

Lecture on the Role of Financial Mathematics in the Crisis at the Opening of the Bielefeld Graduate School of Theoretical Sciences 2013 -
Finanzkrise und Finanzmathematik im globalen Kapitalismus: Zusammenhänge und Schlussfolgerungen

Vortrag im Rahmen des Forums "Offene Wissenschaft" 2018