Rohde, C.; Kupfer, A.; Zimmermann, S. (2022):
Explaining Reviewing Effort: Existing Reviews as Potential Driver.
Electronic Markets 32, 1169–1185.

Wrabel, A.; Kupfer, A.; Zimmermann, S. (2022):
Being informed or getting the product? - How the coexistence of Scarcity Cues and Online Consumer Reviews affects Online Purchase Decisions.
Business & Information Systems Engineering 64, 575–592.

Nault, B.R.; Zimmermann, S. (2019):
Balancing Openness and Prioritization in a Two-Tier Internet.
Information Systems Research 30/3, 711-1105.

Gutt, D.; Neumann, J.; Zimmermann, S.; Kundisch, D.; Cheng, J. (2019):
Design of Review Systems - A Strategic Instrument to shape Online Review Behavior and Economic Outcomes.
Journal of Strategic Information Systems 28/2, 104-117.

Zimmermann, S.; Herrmann, P.; Kundisch, D.; Nault, B.R. (2018):
Decomposing the Variance of Consumer Ratings and the Impact on Price and Demand.
Information Systems Research 29/4, 779-1068.

Zimmermann, S.; Angerer, P.; Provin, D.; Nault, B.R. (2018):
Pricing in C2C Sharing Platforms.
Journal of the AIS 19/8, 671-678.

Zimmermann, S.; Müller, M.P.; Heinrich, B. (2016):
Exposing and Selling the Use of Web Services - An Option to be considered in Make-or-Buy Decision Making.
Decision Support Systems 89, 28-40.

Müller, M.P.; Stöckl, S.; Zimmermann, S.; Heinrich, B. (2016):
Decision Support for IT Investment Projects - A Real Option Analysis Approach based on Relaxed Assumptions.
Business & Information Systems Engineering 56/6, 381-396.
Honoured with the Research Prize for Young Researchers of the Principality of Liechtenstein 2015

Heinrich, B.; Klier, M.; Zimmermann, S. (2015):
Automated Planning of Process Models: Design of a Novel Approach to Construct Exclusive Choices.
Decision Support Systems 78, 1-14.

Heinrich, B.; Klier, M.; Lewerenz, L.; Zimmermann, S. (2015):
Quality-of-Service-Aware Service Selection: A Novel Approach Considering Potential Service Failures and Non-Deterministic Service Values.
INFORMS Service Science 7, 1-22.

Heinrich, B.; Kundisch, D.; Zimmermann, S. (2014):
Analyzing Cost and Risk Interaction Effects in IT Project Portfolios.
Banking and Information Technology 15/2, 8 - 20.

Heidemann, J.; Klier, M.; Landherr, A.; Zimmermann, S. (2013):
The Optimal Level of CRM IT Investments – An Economic Model and its Application at a Financial Services Provider.
Electronic Markets 23/1, 73 - 87.

Zimmermann, S.; Katzmarzik, A.; Kundisch, D. (2012):
IT Sourcing Portfolio Management for IT Services Providers - An Approach for Using Modern Portfolio Theory to Allocate Software Development Projects to Available Sites.
DATA BASE for Advances in Information Systems 43/1, 24-45.
Nominated for the AIS Best Information Systems Publications Award 2013
Honoured with the Liechtenstein Prize 2013

Diepold, D.; Ullrich, C.; Wehrmann, A.; Zimmermann, S. (2011):
Bewertung intertemporaler Abhängigkeiten zwischen IT-Projekten - Anwendung eines realoptionsbasierten Ansatzes unter Berücksichtigung projektspezifischer Risiken.
Journal of Business Economics (Zeitschrift für Betriebswirtschaft) 81/7, 805 - 831.

Zimmermann, S. (2008):
Governance im IT-Portfoliomanagement.
Business & Information Systems Engineering (Wirtschaftsinformatik) 50/5, 357 - 365.

Zimmermann, S. (2008):
IT-Portfoliomanagement – Ein Konzept zur Bewertung und Gestaltung von IT.
Informatik-Spektrum 31/5, 460 - 468.

Eberhardt, M.; Zimmermann, S. (2007):
IT-gestützte individualisierte Altersvorsorgeberatung.
Business & Information Systems Engineering (Wirtschaftsinformatik) 49/2, 104 - 115.

Wehrmann, A.; Zimmermann, S. (2005):
Integrierte ex-ante Rendite-/Risikobewertung von IT-Investitionen.
Business & Information Systems Engineering (Wirtschaftsinformatik) 47/4, 247 - 257.

Han, K.; Kundisch, D.; Weinhardt, C.; Zimmermann, S. (2015):
Economics and Value of IS.
Business & Information Systems Engineering 57/5, 295-297.

Buhl, H. U.; Wehrmann, A.; Zimmermann, S. (2007):
Wirtschaftliche Chancen und Risiken von Softwareentwicklung in internationalen Wertschöpfungsnetzen.
Business & Information Systems Engineering (Wirtschaftsinformatik) 49/1, 138 - 145.

Bohnen, E.; Erlebach, S.; Zimmermann, S. (2023): 
DrugExBERT for Pharmacovigilance – A Novel Approach for Detecting Drug Experiences from User-Generated Content.
International Conference on Information Systems (ICIS) 2023. Hyderabad, India.

Röder, A.; Bohnen, E.; Züllig, K.; Kupfer, A.; Zimmermann, S. (2023): 
Dynamic Pricing on Two-Sided Platforms: Consequences on Customers’ Fairness Perceptions and Purchase Intentions.
International Conference on Information Systems (ICIS) 2023. Hyderabad, India.

Napirata, S.; Sedlmeir, J.; Rieger, A.; Fridgen, G.; Zimmermann, S. (2023):
The Competition Effect of Decentralized Platforms: An Analytical Model.
International Conference on Information Systems (ICIS) 2023. Hyderabad, India.

Wrabel, A.; Kupfer, A.; Zimmermann, S. (2023):
Can a Button Change your Purchase? – The Effect of the Accessibility of Consumer Reviews on Consumers’ Online Purchase Decisions.
Wirtschaftsinformatik 2023 Proceedings. Paderborn, Germany.

Züllig, K.; Napirata, S.; Zimmermann, S. (2023):
Context-Aware Marketing Attribution Based on Survival Analysis.
Wirtschaftsinformatik 2023 Proceedings. Paderborn, Germany.

Erlebach, S.; Kupfer, A.; Wrabel, A.; Zimmermann, S. (2023):
Tagging the Fakes? – The Impact of Tagging Fake Reviews on Consumer Trust and Purchase Intention.
European Conference on Information Systems (ECIS) 2023. Kristiansand, Norway.

Züllig, K.; Erlebach, S.; Kupfer, A.; Zimmermann, S. (2023):
Bargain Hunting On Black Friday - Making Great Deals And Bragging About Them.
Hawaii International Conference on System Sciences (HICSS) 2023. Hawaii, USA.

Erlebach, S.; Kupfer, A.; Wrabel, A.; Zimmermann, S. (2022):
Tag Me If You Can - (How) Should Platforms Tag Fake Reviews and Fake Users?
European Conference on Information Systems (ECIS) 2022. Timisoara, Romania.

Napirata, S.; Kupfer, A.; Zimmermann, S.; Nault B.R. (2021):
Platform-based Sharing of 'need-to-use' Goods.
Workshop on Information Systems and Economics (WISE) 2021. Austin, USA.

Erlebach, S.; Kupfer, A.; Wrabel, A.; Zimmermann, S. (2021):
How Should Fake Reviews Be Tagged? The Influence Of Fake Reviews On Consumers’ Willingness-to-pay And Future Reviewing Effort.
INFORMS Annual Meeting 2021. Online.

Rohde, C.; Kupfer, A.; Zimmermann, S. (2021):
Explaining Reviewing Effort: Existing Reviews as Potential Driver.
Internationale Tagung Wirtschaftsinformatik (WI) 2021. Online.

Kupfer, A.; Maier, R.; Zimmermann, S.; Thiele, J. (2020):
Do featured consumer reviews matter?
International Conference on Information Systems (ICIS) 2020. Online.

Rohde, C.; Kupfer, A.; Zimmermann, S. (2020):
Explaining Reviewing Effort: Existing Reviews as Potential Driver.
Conference on Information Systems and Technology (CIST) 2020. Online.

Kupfer, A.; Maier, R.; Zimmermann, S.; Thiele, J. (2020):
Bought at first sight? The effects of featured consumer reviews.
Conference on Information Systems and Technology (CIST) 2020. Online.

Rohde, C.; Kupfer, A.; Zimmermann, S. (2020):
Influence Of A Review Environment On Reviewing Effort. Evidence From Google Maps.
INFORMS Annual Meeting 2020. Online.

Kupfer, A.; van Essen, L.; Zimmermann, S. (2019):
Design Features of Non-Financial Reward Programs for Online Reviews: Evaluation based on Google Maps.
International Conference on Wirtschaftsinformatik (WI) 2019. Siegen, Germany.

Kupfer, A.; van Essen, L.; Zimmermann, S. (2018):
Non-Financial Rewards for Online Reviews and the Effects on Review Quantity and Effort.
Conference on Information Systems and Technology (CIST) 2018. Phoenix, USA.

Angerer, P.; Zimmermann, S.; Pale, G.; Salomon, G.; Provin, D.; Kathan, W.; Matzler, K. (2018):
The Impact of Dynamic Two-Sided Platform Pricing on Fairness Perception in the Sharing Economy.
Hawaii International Conference on System Science (HICSS) 2018. Hawaii, USA.

Otto, L.; Angerer, P.; Zimmermann, S. (2018):
Incorporating External Trust Signals on Service Sharing Platforms.
European Conference on Information Systems (ECIS) 2018. Portsmouth, UK.

Nault, B.R.; Zimmermann, S. (2018):
Balancing Openness and Prioritization in a Two-Tier Internet.
Theory in Economics of Information Systems (TEIS) 2018. San Diego, USA.

Angerer, P.; Zimmermann, S.; Nault, B.R. (2017):
Dynamic Two-Sided Platform Pricing in C2C Sharing Ecosystems.
INFORMS Annual Meeting 2017. Houston, USA.

Zimmermann, S.; Herrmann, P.; Kundisch, D.; Nault, B.R. (2017):
Decomposing the Variance of Consumer Ratings and the Impact on Price and Demand.
Theory in Economics of Information Systems (TEIS) 2017. Sonoma, USA.

Provin, D.; Angerer, P.; Zimmermann, S. (2016):
Economics of B2C Sharing Platforms.
International Conference on Information Systems (ICIS) 2016. Dublin, Ireland.

Zimmermann, S.; Herrmann, P.; Kundisch, D.; Nault, B.R. (2016):
Decomposing the Variance of Consumer Ratings and the Impact on Price and Demand.
IS Design and Economic Behavior (ISDEB) 2016. Ilmenau, Germany.

Herrmann, P.; Kundisch, D.; Zimmermann, S.; Nault, B.R. (2015):
How do Different Sources of the Variance of Consumer Ratings Matter?
International Conference on Information Systems (ICIS) 2015. Fort Worth, USA.

Meier, C.; Zimmermann, S.; Nicolau, V. (2015):
The Impact of Human Resource Sharing on IT Project Risk.
International Conference on Information Systems (ICIS) 2015. Fort Worth, USA.

Angerer, P.; Müller, M.P.; Zimmermann, S. (2015):
Optimal Pricing Behavior of Online Sharing Platforms.
Conference on Information Systems and Technology (CIST) 2015. Philadelphia, USA.

Herrmann, P.; Kundisch, D.; Zimmermann, S.; Nault, B.R. (2015):
Different Sources of the Variance of Online Consumer Ratings and their Impact on Price and Demand.
Conference on Information Systems and Technology (CIST) 2015. Philadelphia, USA.
Nominee Best Paper Award

Müller, M.P.; Meier, C.; Kundisch, D.; Zimmermann, S. (2015):
Interactions in IS Project Portfolio Selection – Status Quo and Perspectives.
International Conference on Wirtschaftsinformatik (WI) 2015. Osnabrück, Germany.

Herrmann, P.; Kundisch, D.; Nicolau, V.; Zimmermann, S. (2014):
Competition at Last? An Economic Analysis of Current Mobile Data Roaming Regulations in Europe (Research-in-Progress).
European Conference on Information Systems (ECIS) 2014. Tel Aviv, Israel.

Müller, M.; Stöckl, S.; Zimmermann, S. (2014):
Valuation of Real Options on IT Investments - A Simulation Model based on Modified Assumptions.
Paper Development Workshop at European Conference on Information Systems (ECIS) 2014. Tel Aviv, Israel.

Heinrich, B.; Kundisch, D.; Zimmermann, S. (2014):
Analyzing Risk Interaction Effects among IT Projects based on Modern Portfolio Theory.
Multikonferenz Wirtschaftsinformatik (MKWI) 2014. Paderborn, Germany.

Herrmann, P.; Kundisch, D.; Nicolau, V.; Zimmermann, S. (2014):
Competition at Last? An Economic Analysis of Current Mobile Data Roaming Regulations in Europe (Research-in-Progress).
Multikonferenz Wirtschaftsinformatik (MKWI) 2014. Paderborn, Germany.

Nault, B.R.; Zimmermann, S. (2013):
Policy, Pricing and Investment in a Two-Tier Internet.
Conference on Information Systems and Technology (CIST) 2013. Minneapolis, USA.

Heinrich, B.; Müller, M.; Zimmermann, S. (2013):
A Real Option Approach for Make-and-Sell-or-Buy Decisions of Web Services.
INFORMS Annual Meeting 2013. Minneapolis, USA.

Heinrich, B.; Zimmermann, S. (2012):
Granularity Metrics for Web Services.
International Conference on Information Systems (ICIS) 2012. Orlando, USA.
Nominee Best Paper Award

Müller, M.; Stöckl, S.; Zimmermann, S. (2012):
Valuation of Interdependent IT Projects – A Real Option Approach Considering Unhedgeable Risks.
INFORMS Annual Meeting 2012. Phoenix, USA.

Nault, B.R.; Zimmermann, S. (2011):
Adoption of a Two-Tier Internet.
INFORMS Annual Meeting 2011. Charlotte, USA.

Heinrich, B.; Huber, A.; Zimmermann, S. (2011):
Make-and-Sell or Buy of Web Services - A Real Option Approach.
European Conference on Information Systems (ECIS) 2011. Helsinki, Finland.
Nominee Best Paper Award

Heinrich, B.; Kundisch, D.; Zimmermann, S. (2011):
Global Sourcing in the Presence of Interaction Effects among Software Development Projects.
Global Sourcing Workshop 2011. Courchevel, France.

Heinrich, B.; Klier, M.; Zimmermann, S. (2011):
Automatisierte Modellierung, Umsetzung und Ausführung von Prozessen – Ein Web Service-basiertes Konzept.
International Conference on Wirtschaftsinformatik (WI) 2011. Zürich, Switzerland.

Diepold, D.; Ullrich, C.; Wehrmann, A.; Zimmermann, S. (2009):
A Real Options Approach for Valuating Intertemporal Interdependencies within a Value-Based IT Portfolio Management – A Risk-Return Perspective.
European Conference on Information Systems (ECIS) 2009. Verona, Italy.

Carmel, E.; Curley, K.; Even, A.; Zimmermann, S. (2009):
ICT-Enabled Global Work – Past, Present, and Future (Panel Discussion).
European Conference on Information Systems (ECIS) 2009. Verona, Italy.

Heidemann, J.; Klier, M.; Landherr, A.; Zimmermann, S. (2009):
Ökonomische Planung kundenorientierter IT-Investitionen – ein modellbasierter Ansatz und seine Anwendung bei einem Finanzdienstleister.
International Conference on Wirtschaftsinformatik (WI) 2009. Wien, Austria.

Zimmermann, S.; Katzmarzik, A.; Kundisch, D. (2008):
IT Sourcing Portfolio Management for IT Services Providers – A Risk/Cost Perspective.
International Conference on Information Systems (ICIS) 2008. Paris, France.

Zimmermann, S.; Katzmarzik, A. (2007):
IT Sourcing Portfolio Management.
INFORMS International Conference 2007. Puerto Rico, USA.

Zimmermann, S.; Heinrich, B.; Kundisch, D. (2012):
IT Projektportfolios mit Abhängigkeiten gestalten.
Lang, M.; Kammerer, S.; Amberg, M. (eds.): Projektportfoliomanagement in der IT - Priorisierung, Investition, Steuerung. Düsseldorf: Symposion, 123 - 151.

Zimmermann, S.; Heinrich, B. (2011):
Bewertung und Gestaltung von IT-Projektportfolios.
Amberg, M.; Lang, M. (eds.): Erfolgsfaktor IT-Management - So steigern Sie den Wertbeitrag Ihrer IT. Düsseldorf: Symposion, 407 - 424.

Heinrich, B.; Klier, M.; Zimmermann, S. (2011):
Automated Planning of Process Models –Towards a Semantic-based Approach.
Smolnik, S.; Teuteberg, F.; Thomas, O. (eds.): Semantic Technologies for Business and Information Systems Engineering: Concepts and Applications. Hershey: IGI Global, 169 -194.

Zimmermann, S. (2014):
Value-based IT Investment Portfolio Management.
Habilitation. Innsbruck: University of Innsbruck.

Zimmermann, S. (2008):
Wertorientiertes IT-Portfoliomanagement – Ansätze zur ertrags-/risiko-integrierten Bewertung und Gestaltung von IT.
Dissertation. Augsburg: University of Augsburg.