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Freelance lecturer at Europäische Janusz Korczak Akademie/Freelance lecturer at Universität Passau at -

Frankfurt School of Finance & Management

Lecturer at Frankfurt School of Finance & Management

WHU – Otto Beisheim School of Management

Professor of Management Accounting and Control at WHU – Otto Beisheim School of Management

Harvard Kennedy School

Otto Eckstein Professor of Applied Economics, FAS at Harvard Kennedy School

WHU – Otto Beisheim School of Management

Lecturer (Platform Economy, Digital Transformation & Business) at WHU – Otto Beisheim School of Management

Lecturer - Scientific Work in Economics at Universität Duisburg-Essen

WHU – Otto Beisheim School of Management

Adjunct Faculty at WHU – Otto Beisheim School of Management

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Adjunct Assistant Professor at -

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Professor of Finance at EBS University & Law in Wiesbaden at -

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WHU – Otto Beisheim School of Management

Professor & Chair of International Accounting at Otto Beisheim School of Management at -