This cumulative dissertation summarizes and critically discusses seven peer-reviewed publications where I was involved as a co-author. All publications contribute to data analytics techniques. The dissertation consists of ...

This thesis includes research articles on Decision Support Systems, Energy Informatics, and Economics, Shared Micromobility, and Digital Study Assistance. For many years, established Information Systems (IS) scholars have ...

The digital transformation enables innovative business models and smart services, i.e. individual services that are based on data analyses in real-time as well as information and communications technology. Smart services ...

This dissertation consists of three papers on economic decision making and tax policy uncertainty. The first two papers focus on retirement savings and behavioral effects. The third contribution examines the effect of tax ...

This dissertation contributes to understanding the linkage between ethnicity, gender, and body preferences, as well as between ethnicity, gender, and drink choice. It relates its fndings to potential implications for ...

This dissertation is organized in four chapters. Chapter 1 introduces the methodology used and briefly describes each chapter. Chapters 2 and 3 test for the existence of fractional cointegration relationships with applications ...

Research on tax compliance has shown that nonpecuniary incentives are very important for explaining tax compliance, and may outweigh the importance of enforcing tax payments with deterring instruments. This thesis seeks ...

This thesis contains six essays on financial time series. Special attention is paid to the opportunities that high-frequency data offers for modeling and forecasting the return and the risk, measured by the volatility or ...

This dissertation is about investment decisions of private investors with respect to different asset classes, macroeconomic influences and the economic development. Chapter 1 deals with the reactions of German private ...

Hybridität ist ein Phänomen, welches die Organisationslandschaft in den letzten Jahrzehnten zunehmend geprägt hat. Dies spiegelt sich in der Entstehung hybrider Organisationsformen wider, die institutionelle Grenzen ...