His teaching subjects include management accounting and control, and accounting information systems. Stephan’s research is focused on incentive system design, performance measurement and performance evaluation, and his papers have been published in various journals, such as Accounting, Organizations and Society, Management Accounting Research and Abacus. He obtained a PhD at WHU – Otto Beisheim School of Management in 2011, and holds a Master degree in business information systems from the University of Münster.