Steffen is currently an associate professor of finance at the Department of Business and Economics and a research fellow at Leibniz Center of Financial Research SAFE at the Goethe University in Frankfurt.

His research is on private and institutional investor decision making and financial markets. It contributes to a better understanding of financial markets and their participation in order to aid financial institutions and policy makers in their efforts to increase economic welfare. In particular, Steffen has worked on topics of financial advice, investor sentiment, the effect o experiences on investment decisions, consumption of private households and the effect of ambiguity on households. His research is mainly empirical, employs large administrative datasets and often uses field studies. He actively works with partners from the industry to generate data and to be able to adress relevant and interesting research questions.

His research has appeared in major international journals like the Review of Financial Studies the Review of Finance, the Review of Asset Pricing Studies or the Journal of Economic Behavior and Organisation. Recently, different working papers have been presented at the Meetings of the American, Western and European Finance Association as well as at the SFS Cavalcade.

He has also been involved in policy work by co-authoring reports to ministry of consumer protection and by providing a report on the use of derivative securities by private investors.

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