Prof. Dr. Ellen Roemer

• Adoption and acceptance of eco-innovations (e.g., battery-powered electric vehicles)
• Partial Least Squares (PLS) path modeling for analyzing causal relationships between complex constructs
• Neuroscience tools (e.g., eye tracking, skin conductance measurement, etc.)

• Henseler, J., Lee, N., Roemer, E., Kemény, I., Dirsehan, T., Cadogan, JW. (2024): Beware of the Woozle effect and belief perseverance in the PLS-SEM literature!, Electronic Commerce Research, vol. 24, pp. 715-744, https://link.springer.com/article/10.1007/s10660-024-09849-y 
• Lahmeyer, S., Roemer, E. (2024): The link between consumer-facing technologies and customer experience in physical retail environments: a critical literature review, The International Review of Retail, Distribution and Consumer Research, vol. 34, pp. 128-159, https://doi.org/10.1080/09593969.2024.2332224
• Schuberth, F., Hubona, G., Roemer, E.; Zaza, S.; Schamberger, T., Chuah, F., Cepeda-Carrión, G., Henseler, J. (2023): The choice of structural equation modeling technique matters: A commentary on Dash and Paul (2021), Technological Forecasting and Social Change, 194, 122665, https://www.sciencedirect.com/science/article/pii/S0040162523003505 
• Roemer, E., Henseler, J. (2022): The dynamics of electric vehicle acceptance in corprate fleets: Evidence from Germany, Technology in Society, 68, February, 101938, pp. 1-11, https://doi.org/10.1016/j.techsoc.2022.101938
• Roemer, E., Schuberth, F. and Henseler, J. (2021), "HTMT2-an improved criterion for assessing discriminant validity in structural equiation modeling", Industrial Management & Data Systems, Vol. 121 No. 12, pp. 2637-2650, https://doi.org/10.1108/IMDS-02-2021-0082
• Roemer, E. and Burs, L. (2021): How do Social Signals Foster the Adoption of Battery Electric Vehicles in Corporate Fleets? A Multilevel Framework, International Journal of Environmental Science & Natural Resources, vol. 26 (5), pp 149-153, 10.19080/IJESNR.2021.26.556198
• Mahlke, C., Lahmeyer, S. and Roemer, E. (2020): What is love? Exploring the meaning of brand love and its role in determining brand loyalty, Multidisciplinary Business Review, vol. 13 (2), pp 54-65, https://doi.org/10.35692/07183992.13.2.6.
• Burs, L., Roemer, E., Worm, S. and Masini, A. (2020): Are the all equal? Uncovering Adopter Groups of Battery Electric Vehicles, Sustainability, 12, 2815, https://doi.org/10.3390/su12072815.
• Roemer, E., Hagemus-Becker, N. and Ulrich, H. (2020): For which type of students does the inverted classroom model work out? An empirical analysis of learning success of different types of students, in: In: Auer M., Tsiatsos T. (eds): The Challenges of the Digital Transformation in Education. Advances in Intelligent Systems and Computing, vol. 916, pp 110-119.
• Roemer, E. (2016): A Tutorial Paper on the Use of PLS-Modeling in Longitudinal Studies: The Example of a Study of Users’ Acceptance of Battery Electric Vehicles in Corporate Fleets, Industrial Management & Data Systems, vol. 116, No. 9, pp. 1901-1921.
• Burs, L. and Roemer, E. (2015): The Impact of Social Signals on the Adoption of Innovations within Organizations, 44^th EMAC Conference, Leuven, Belgium.
• Petersone, E., van Riel, A., Henseler, J. and Roemer, E. (2015): Facilitators and Barriers of Organizational Adoption of Integrated Solutions; The Case of Battery Electric Vehicles in Corporate Fleets, The 14th International Research Symposium on Service Excellence in Management, Shanghai, China.
• Collan, M., Freiling, J., Kyläheiko, K. and Roemer, E. (2014): Entrepreneurship and the art of tackling technological crises: a strategic real options framework, International Journal of Technology Intelligence and Planning, vol. 2 (10), pp. 166-185.
• Henseler, J. und Roemer, E. (2013): “Let’s Wait and See!” The Real Option to Switch as a New Element of Customer Value, Schmalenbach Business Review, vol. 65 (2), pp. 112-136.
• Van der Aa, Z.; Bloemer, J.; Henseler, J.; Roemer, E. (2013): Customer-Care-Center-Qualität: Messung und Nutzung. Marketing Review St. Gallen, vol. 30 (3), pp. 16-24.
• Foss, N. J.; Roemer, E. (2010): Real Options, Resources and Transaction Costs: Advancing the Strategic Theory of the Firm. International Journal of Strategic Change Management, vol. 2, No. 1, pp. 73-92.
• Baier, M.; Graefe, G. and Roemer, E. (2008): Selecting promising business ideas for innovative IT Services. European Journal of Innovation Management, vol. 11, No. 4, pp. 560-576.

At HRW, Prof. Dr. Roemer is a member of the Faculty Council of the Institute of Business.

Expert for market research & international marketing

Ellen Roemer, PhD, started her appointment with Hochschule Ruhr West on 1 September 2010. She covers the areas of Market Research and International Marketing at the Institute of Business Administration and Economics. She is Programme Director for the study programme “Business Administration - International Retail Management & Logistics”.

Born in the Ruhr area, Ellen studied Business Administration and Economics at Ruhr University Bochum and at IECS Strasbourg, France. After graduating, she worked as a project manager at IMT Berlin before completing her PhD on customer evaluation at University of Paderborn and University of Calgary, Canada. Afterwards, she worked as a Lecturer in Marketing at Bradford University School of Management, UK. She also gained valuable practical insights as a management consultant at PricewaterhouseCoopers AG Wirtschaftsprüfungsgesellschaft.

At Hochschule Ruhr West, Ellen was leader of third-party-funded projects on the adoption and acceptance of eco-innovations (e.g. battery electric vehicles) and on the further development of the degree programme Business Studies – International Retail Management and Logistics.

You can find your profile on GoogleScolar on the Google Scholar profile page of Ellen Roemer. 

The best way to reach me is by e-mail at ellen.roemer@hs-ruhrwest.de. I always try to answer my e-mails as soon as I receive them.

She is also a member of the Verband der Hochschullehrerinnen und Hochschullehrer für Betriebswirtschaft e.V. (VHB).

She is also active as a professorial member of the "Business and Markets" group at Graduate School for Applied Research in North Rhine-Westphalia (PK NRW) and thus holds the right to confer doctorates. She also serves as the group's equal opportunities officer.

• Adoption and acceptance of eco-innovations (e.g. battery-powered, electric vehicles)
• Partial least squares (PLS) path modeling to analyze causal relationships between complex constructs
• Neuro science tools (e.g. eye tracking, skin resistance measurement, etc.)
• Customer experience in Online and VR environments
   

• Henseler, J., Lee, N., Roemer, E., Kemény, I., Dirsehan, T., Cadogan, JW. (2024): Beware of the Woozle effect and belief perseverance in the PLS-SEM literature!, Electronic Commerce Research, vol. 24, pp. 715-744, https://link.springer.com/article/10.1007/s10660-024-09849-y 
• Lahmeyer, S., Roemer, E. (2024): The link between consumer-facing technologies and customer experience in physical retail environments: a critical literature review, The International Review of Retail, Distribution and Consumer Research, vol. 34, pp. 128-159, https://doi.org/10.1080/09593969.2024.2332224
• Schuberth, F., Hubona, G., Roemer, E.; Zaza, S.; Schamberger, T., Chuah, F., Cepeda-Carrión, G., Henseler, J. (2023): The choice of structural equation modeling technique matters: A commentary on Dash and Paul (2021), Technological Forecasting and Social Change, 194, 122665, https://www.sciencedirect.com/science/article/pii/S0040162523003505 
• Roemer, E., Henseler, J. (2022): The dynamics of electric vehicle acceptance in corprate fleets: Evidence from Germany, Technology in Society, 68, February, 101938, pp. 1-11, https://doi.org/10.1016/j.techsoc.2022.101938
• Roemer, E., Schuberth, F. and Henseler, J. (2021), "HTMT2-an improved criterion for assessing discriminant validity in structural equiation modeling", Industrial Management & Data Systems, Vol. 121 No. 12, pp. 2637-2650, https://doi.org/10.1108/IMDS-02-2021-0082
• Roemer, E. and Burs, L. (2021): How do Social Signals Foster the Adoption of Battery Electric Vehicles in Corporate Fleets? A Multilevel Framework, International Journal of Environmental Science & Natural Resources, vol. 26 (5), pp 149-153, 10.19080/IJESNR.2021.26.556198
• Mahlke, C., Lahmeyer, S. and Roemer, E. (2020): What is love? Exploring the meaning of brand love and its role in determining brand loyalty, Multidisciplinary Business Review, vol. 13 (2), pp 54-65, https://doi.org/10.35692/07183992.13.2.6.
• Burs, L., Roemer, E., Worm, S. and Masini, A. (2020): Are the all equal? Uncovering Adopter Groups of Battery Electric Vehicles, Sustainability, 12, 2815, https://doi.org/10.3390/su12072815.
• Roemer, E., Hagemus-Becker, N. and Ulrich, H. (2020): For which type of students does the inverted classroom model work out? An empirical analysis of learning success of different types of students, in: In: Auer M., Tsiatsos T. (eds): The Challenges of the Digital Transformation in Education. Advances in Intelligent Systems and Computing, vol. 916, pp 110-119.
• Roemer, E. (2016): A Tutorial Paper on the Use of PLS-Modeling in Longitudinal Studies: The Example of a Study of Users’ Acceptance of Battery Electric Vehicles in Corporate Fleets, Industrial Management & Data Systems, vol. 116, No. 9, pp. 1901-1921.
• Burs, L. and Roemer, E. (2015): The Impact of Social Signals on the Adoption of Innovations within Organizations, 44^th EMAC Conference, Leuven, Belgium.
• Petersone, E., van Riel, A., Henseler, J. and Roemer, E. (2015): Facilitators and Barriers of Organizational Adoption of Integrated Solutions; The Case of Battery Electric Vehicles in Corporate Fleets, The 14th International Research Symposium on Service Excellence in Management, Shanghai, China.
• Collan, M., Freiling, J., Kyläheiko, K. and Roemer, E. (2014): Entrepreneurship and the art of tackling technological crises: a strategic real options framework, International Journal of Technology Intelligence and Planning, vol. 2 (10), pp. 166-185.
• Henseler, J. und Roemer, E. (2013): “Let’s Wait and See!” The Real Option to Switch as a New Element of Customer Value, Schmalenbach Business Review, vol. 65 (2), pp. 112-136.
• Van der Aa, Z.; Bloemer, J.; Henseler, J.; Roemer, E. (2013): Customer-Care-Center-Qualität: Messung und Nutzung. Marketing Review St. Gallen, vol. 30 (3), pp. 16-24.
• Foss, N. J.; Roemer, E. (2010): Real Options, Resources and Transaction Costs: Advancing the Strategic Theory of the Firm. International Journal of Strategic Change Management, vol. 2, No. 1, pp. 73-92.
• Baier, M.; Graefe, G. and Roemer, E. (2008): Selecting promising business ideas for innovative IT Services. European Journal of Innovation Management, vol. 11, No. 4, pp. 560-576.

• Shopper Laboratory
• VR-Laboratory

Profile on Google Scholar