Prof. Geiger's research interests lie primarily in business-to-business marketing with a special field of negotiation research. However, scientific questions relating to pricing, market research and decision-making in young companies are also currently on Prof. Geiger's agenda. This includes the following projects on an ongoing basis:
- How do investors affect innovation in high-tech, software, and online ventures? The intermediate role of investor influence and entrepreneurs' safeguarding and engaging behaviors (with Florian Dost, BTU Cottbus, and Tobias Frese, formerly FU Berlin)
- Issue packaging strategies in complex multi-issue negotiations (with Hong Zhang, Johan Majer and Roman Trötschel, Leuphana University of Lüneburg)
- Determinants of companies' adaptability in times of crises: The case of COVID 19 (with Katarzyna Mroczek-Dąbrowska, Aleksandra Kania and Anna Matysek-Jędrych, Poznan University of Economics)
- Do "effectuators" suffer less from overconfidence bias than "causators"? The case of ventures' innovation outcomes (with Diemo Urbig, Florian Dost, both BTU Cottbus, and Tobias Frese, formerly FU Berlin)
In addition to his own research projects, Professor Geiger is Associate Editor of Group Decision & Negotiation and a member of the editorial board of Industrial Marketing Management.
He has also recently served as an ad hoc evaluator, assessment, report for the following journals, periodicals, magazines:
- Business & Information Systems Engineering
- Cogent Business & Management
- Computers & Education
- Computers in Human Behavior
- Conflict Management Quarterly
- Frontiers in Communication
- Frontiers in Psychology
- In-Mind
- International Journal of Conflict Management
- Journal of Business and Industrial Marketing
- Journal of Business Economics
- Journal of Personnel Selling & Sales Management
- Journal of Strategic Contracting and Negotiation
- Negotiation & Conflict Management Research
- Police Practice & Research: An International Journal
- Small Business Economics
