Werdegang
Since 2/21 University of Cologne, Cologne, Germany
Deans’ Speaker
Alignment of Schools’ activities and coordination of Schools’ and University’s activities
Since 4/19 University of Cologne, Cologne, Germany
Dean of Faculty of Management, Economics, and Social Sciences
Developing, coordinating and executing Faculty’s strategy
Coordinating Faculty activities with internal and external stakeholders
Representing Faculty
Since 1/19 University of Cologne Business School gGmbH, Cologne, Germany
President
Coordinating program portfolio
Supporting marketing, sales, and program delivery
Representing Business School
9/15 – 12/18 University of Cologne Executive School gGmbH, Cologne, Germany
Managing Director
Development and execution of Business School and Executive Education strategies
Management of marketing, sales, and program delivery
Coordination of activities of University of Cologne Executive gGmbH, University of Cologne and Faculty of Management, Economics, and Social Sciences
4/15 – 3/19 University of Cologne, Cologne, Germany
First Vice Dean of Faculty of Management, Economics, and Social Sciences
Main responsibility: Establishment of Business School and Executive Education Programs
3/10 – 3/15 University of Cologne, Cologne, Germany
Vice Dean External Relations of Faculty of Management, Economics, and Social Sciences 
· Management of Internationalization Initiatives and Programs (e.g., Summer Schools, Campuses Abroad, Double Master Programs)
· Management of Internationalization Center
· Management of academic networks (e.g., CEMS and PIMS)
1/13 – 4/13 University of California at Berkeley, CA
Sabbatical
10/08 – 2/10 University of Cologne, Cologne, Germany
Chairman of Business Faculty
· Management of Business Faculty
· Implementation of Bologna processes
· Design, coordination and controlling of re-structuring programs
Since 10/04 University of Cologne, Cologne, Germany
Full Professor and Director of Institute of Supply Chain Management & Management Science
· Design and implementation of Supply Chain Management Master of Science
· Establishment of corporate supply chain management network
· Consulting with various companies on supply chain optimization including development of software solutions for inventory and crew optimization
· Research and teaching on supply chain optimization and behavioral operations
10/00 – 9/04 University of Münster, Münster, Germany
Full Professor and Director of Institute of Supply Chain Management
· Establishment of first Supply Chain Management Institute at German university
· Design and implementation of Supply Chain Management study program major
· Establishment of supply chain management executive programs
· Research and teaching on supply chain optimization
1/98 – 9/00 Stanford University, Stanford, CA
Assistant Professor
· Research and teaching on supply chain information systems
· Member of Stanford’s Global Supply Chain Management Forum
· Consulting with electronics companies on service parts optimization
2/95 – 12/97 McKinsey & Company Inc., Cologne, Germany
Management Consultant
· Product redesign for a leading automotive company
· Core process redesign for a major European automotive manufacturer
· Growth strategy for a European component supplier
10/94 - 1/95 Stanford University, Stanford, CA
Acting Assistant Professor
Research on product design application of research results in automotive industry
10/93 - 8/94 Stanford University, Stanford, CA
Teaching Assistant
7/93 - 9/93 University of Paderborn, Paderborn, Germany
1/90 - 9/90 Research Assistant
1/86 - 9/87 Nixdorf Computer AG, Hannover, Germany
IT Service Manager
10/84 - 12/85 Military Service, Detmold, Germany
7/81 - 9/84 Nixdorf Computer AG, Paderborn, Germany
Apprenticeship

EDUCATION
10/92 - 9/94 Stanford University, Stanford, CA
Ph.D. in Production and Operations Management
7/92 - 9/92 University of Paderborn, Paderborn, Germany
4/90 - 9/90 Diplom-Wirtschaftsingenieur (comparable to M.S.)
10/91 - 6/92 Stanford University, Stanford, CA
M.S. in Production and Operations Management
1/91 - 5/91 University of California at Berkeley, Berkeley, CA
Graduate studies in Computer Science
9/90 - 12/90 University of California at San Diego, San Diego, CA
Graduate studies in Operations Research
10/89 – 3/90 University of Nottingham, Nottingham, Great Britain
Graduate studies in Economics
10/87 - 9/89 University of Paderborn, Paderborn, Germany
Vordiplom Wirtschaftsingenieurwesen

Auszeichnungen und Ehrungen
DFG Cluster ECONTribute – Investigator (since 2020)
Bundesvereinigung Logistik (BVL) e.V. – Scientific Advisory Board Member (since 2017)
DFG - German National Science Foundation – PI Design and Behavior (since 2014)
North Rhine Westphalia Academy of Science – Full Member (since 2010)
Stanford Club of Germany – Board Member (since 2009)
Verein für Socialpolitik – Full Member (since 2008)
Production and Operations Management, Associate Editor (since 2006)
Operations Research Spectrum, Co-Editor (2004-2014)
DFG - German National Science Foundation – PI Design and Behavior (2011-2014)
Albertus Magnus Prize – Teaching Award University of Cologne (2007, 2008, 2011, 2012, 2014, 2017)
European Center of Information Systems – Director (2004 – 2012)
Bosch Award (2000)
Terman Fellow (1999-2000)
Anderson Faculty Scholar (1998-2000)
Kleist Fellow (1993)
Outstanding academic achievements at Stanford University (1992)
Best student of the year in Paderborn (1992)

Ausgewählte Publikationen
Using Machine Learning to Include Planners’ Preferences in Railway Crew Scheduling Optimization, 2023, Transportation Science (with T. Gattermann-Itschert and  L. Poreschack)
The Value of Response Time Information in Supply Chain Bargaining, 2023, Manufacturing and Service Operations Management (with F. Chen and Y. Zhao)
The effect of social preferences on sales and operations planning, 2021, Operations Research (with F. Papier)
Designing incentive systems for truthful demand information sharing–theory and experiment, 2017, Management Science (with L. Scheele and M. Slikker).
Equivalent Inventory Metrics: A Behavioral Perspective, Manufacturing and Service Operations Management, 2017, Vol. 19, No. 3, pp. 472–488 (with T. Stangl).
Designing Buyback Contracts for Irrational but Predictable Newsvendors, Management Science, 2013, Vol. 59, Issue 8, pp. 1800-1816, 2013 (with M. Becker-Peth and E. Katok).
Designing Service Level Contracts for Supply Chain Coordination, Production and Operations Management, Production and Operations Management, 2012, Vol. 21, Issue 4, pp. 698-714 (with M.A. Sieke and R.W. Seifert).
Managers and Students as Newsvendors - How Out-of-Task Experience Matters, Management Science, Management Science, 2012, Vol. 58, pp. 2225-2233 (with A. Ockenfels and G. Bolton).
Capacity Rationing in Stochastic Rental Systems with Advance Demand Information, Operations Research, 2010, pp. 274-288 (with F. Papier).
Modeling the Benefits of Sharing Future Demand Information, Operations Research, 2004, Vol. 52, pp. 136-147 (with K. Zhu).
Easy Quantification of Improved Spare Parts Inventory Policies, Management Science, 2002, Vol. 48, pp. 1213-1225 (with A. Brown and W.H. Hausman).
Optimal Commonality in Component Design, Operations Research, 2000, Vol. 48, pp. 1-19 (with M.L. Brandeau).
Optimal Assignment Policies for Automated Storage and Retrieval Systems with Stochastic Demands, Management Science, 1998, Vol. 44, pp. 142-148 (with M.L. Brandeau).

ACADEMIC PUBLICATIONS
Using Machine Learning to Include Planners’ Preferences in Railway Crew Scheduling Optimization, 2023, Transportation Science (with T. Gattermann-Itschert and  L. Poreschack)
Decision making under service‐level contracts: The role of cost saliency, 2023, Production and Operations Management (with G. Bolton, S. Bonzelet, T. Stangl)
The periodic review model with independent age‐dependent lifetimes, 2023, Production and Operations Management (J. Clarkson, M. Voelkel, A. Sachs)
The Value of Response Time Information in Supply Chain Bargaining, 2023, Manufacturing and Service Operations Management (with F. Chen and Y. Zhao)
Proactive customer retention management in a non-contractual B2B setting based on churn prediction with random forests, 2022, Industrial Marketing Management (with T. Gattermann-Itschert)
The risk of algorithm transparency: How algorithm complexity drives the effects on use of advice, 2022, Production and Operations Management (with C. Lehmann, C. Haubitz, and A. Fügener)
Empirical newsvendor biases: Are target service levels achieved effectively and efficiently?, 2022, Production and Operations Management (with AL. Sachs, M. Becker-Peth, and S. Minner)
The effect of social preferences on sales and operations planning, 2021, Operations Research (with F. Papier)
Robust tactical crew scheduling under uncertain demand, 2021, Transportation Science (with C. Rählmann and F. Wagener)
How to change a running system—controlling the transition to optimized spare parts inventory policies, 2021, Production and Operations Management (with C. Haubitz).
How training on multiple time slices improves performance in churn prediction, 2021, European Journal of Operational Research (with T. Gattermann-Itschert).
How to Change a Running System - Controlling the Transition to Optimized Spare Parts Inventory Policies, 2021, Production and Operations Management (with C. Haubitz).
An aggregation-based approximate dynamic programming approach for the periodic review model with random yield, 2020, European Journal of Operational Research (with A. Sachs and M. Völkel).
Determining optimal parameters for expediting policies under service level constraints, 2020, European Journal of Operational Research (with S. Höller and R. Özsen)
Railway crew scheduling with semi-flexible timetables, 2020, OR Spectrum (with C. Rählmann).
Behavioral inventory decisions, 2018, The Handbook of Behavioral Operations (with M. Becker-Peth).
Optimization of battery charging and purchasing at electric vehicle battery swap stations, 2018, Transportation Science (with F. Schneider and D. Klabjan).
Designing incentive systems for truthful demand information sharing–theory and experiment, 2017, Management Science (with L. Scheele and M. Slikker).
A note on the risk aversion of informed newsvendors, 2018, Journal of the Operational Research Society (with M. Becker-Peth, and T. Gully).
The Value of Weather Information for E-Commerce Operations, Production and Operations Management, 2017 (with K. Hoberg and S. Steinker).
Equivalent Inventory Metrics: A Behavioral Perspective, Manufacturing and Service Operations Management, 2017, Vol. 19, No. 3, pp. 472–488 (with T. Stangl).
Optimizing Railway Crew Schedules with Fairness Preferences, Journal of Scheduling, 2017, Vol. 20, Issue 1, pp. 43-55 (with S. Jütte and D. Müller).
Analyzing the effect of express orders on supply chain costs and delivery times, Production and Operations Management, 2016, Vol. 25, Issue 12, pp. 2035-2050 (with H. Olbert and  M. Protopappa‐Sieke).
Reference points in revenue sharing contracts—How to design optimal supply chain contracts, European Journal of Operational Research, 2016, Vol. 249, Issue 3, pp. 1033-1049 (with M. Becker-Peth).
Optimal two-period inventory allocation under multiple service level contracts, European Journal of Operational Research, 2016, Vol. 252, Issue 1, pp. 145-155 (with M. Protopappa-Sieke and M. Sieke).
The value of real time yield information in multi-stage inventory systems–Exact and heuristic approaches, European Journal of Operational Research, 2015, Vol. 240, Issue 1, pp. 72-83 (with M. Dettenbach).
Analyzing Variability, Cost, and Responsiveness of Base-Stock Inventory Policies with Linear Control Theory, IIE Transactions, 2015, Vol. 47, Issue 8, pp. 865-879 (with K. Hoberg).
Determining Optimal Parameters for Expediting Policies, Manufacturing & Service Operations Management, 2014, Vol. 17, Issue 1, pp. 120-133 (with R. Özsen).
Modeling and analyzing information delays in supply chains using transfer functions, International Journal of Production Economics, 2014, Vol. 156, pp. 132-145 (with K. Hoberg).
Designing Buyback Contracts for Irrational but Predictable Newsvendors, Management Science, 2013, Vol. 59, Issue 8, pp. 1800-1816, 2013 (with M. Becker-Peth and E. Katok).
Designing Service Level Contracts for Supply Chain Coordination, Production and Operations Management, Production and Operations Management, 2012, Vol. 21, Issue 4, pp. 698-714 (with M.A. Sieke and R.W. Seifert).
Managers and Students as Newsvendors - How Out-of-Task Experience Matters, Management Science, Management Science, 2012, Vol. 58, pp. 2225-2233 (with A. Ockenfels and G. Bolton).
Divide-and-Price: A Decomposition Algorithm for Solving Large Railway Crew Scheduling Problems, European Journal of Operational Research, 2012, Vol. 219, pp. 214-223 (with S. Jütte).
Supply Chain Design Considering Economies of Scale and Transport Frequencies, European Journal of Operational Research, 2012, Vol.  218,pp. 789-800 (with K. Baumgartner and A. Fuetterer).
Supply Chain Flexibility, Uncertainty and Firm Performance: An empirical Analysis of German Manufacturing Firms, International Journal of Production Economics, 2011, Vol. 130, pp. 43–53 (with U. Merschmann).
Optimizing Railway Crew Scheduling at DB Schenker, Interfaces, 2011, Vol. 41, pp. 109-122 (with S. Jütte, M.  Albers, and K. Haase).
Capacity Rationing in Rental Systems with Two Customer Classes and Batch Arrivals, Omega, 2011, Vol. 39, pp. 73-85 (with F. Papier).
Capacity Rationing in Stochastic Rental Systems with Advance Demand Information, Operations Research, 2010, pp. 274-288 (with F. Papier).
Coordination of Pricing and Inventory Control across Products, Naval Research Logistics, 2009, Vol. 56, pp. 175-190 (with K. Zhu).
An Optimal Constant Level Rationing Policy under Service Level Constraints, Operations Research Spectrum, 2010, pp. 319–341  (with K.T. Möllering).
Queuing Models for Sizing and Structuring Rental Fleets, Transportation Science, Vol. 42, No. 3, August 2008, pp. 302–317 (with F. Papier).
An Optimal Critical Level Policy for Inventory Systems with Two Demand Classes, Naval Research Logistics, 2008, Vol. 55, pp. 632-642 (with K.T. Möllering).
Eine Überdosis an Kooperation vermeiden! Empirische Erkenntnisse zum Erfolg der Supply-Chain-Organisation, ZfbF, 2008, Vol. 60, pp. 241-276 (with K.-H. Magnus, A.-M Nienaber, G. Schewe).
Analyzing the Effect of Inventory Policies on the Nonstationary Performance with Transfer Functions, IIE Transactions, 2007, Vol. 39, pp. 911-924 (with K. Hoberg and J.R. Bradley).
Analyzing the Effect of the Inventory Policy on Order and Inventory Variability with Linear Control Theory, European Journal of Operational Research, 2007, Vol. 176, pp. 1620-1642 (with K. Hoberg and J.R. Bradley).
On the convexity of loss probabilities when arrivals occur in batches and servers are heterogeneous, Operations Research Letters, 2007, Vol. 35, pp. 467-471 (with F. Papier and R.W. Wolff).
Relaxing Channel Separation - Integrating a Virtual Store into the Supply Chain via Transshipments, IIE Transactions, 2006, Vol. 38, pp. 917-931 (with R.W. Seifert and M.A. Sieke).
Integrating Direct and Indirect Sales Channels Under Decentralized Decision-Making, International Journal of Production Economics, 2006, Vol. 109, pp. 209-229 (with R.W. Seifert and M.A. Sieke).
Modeling the Benefits of Sharing Future Demand Information, Operations Research, 2004, Vol. 52, pp. 136-147 (with K. Zhu).
An Adaptive Forecasting Algorithm and Inventory Policy for Products with Short Life Cycles, Naval Research Logistics, 2004, Vol. 51, pp. 634-653 (with K. Zhu).
Deriving Inventory-Control Policies with Genetic Programming, 2004, Operations Research Spectrum, 2004, Vol. 26, pp. 521-546 (with P. Kleinau).
Optimal Procurement Strategies for Online Spot Markets, European Journal of Operational Research, 2004, Vol. 152, pp. 781–799 (with W.H. Hausman and R.W. Seifert).
Supply Chain Engineering, Supply Chain Management, II/2003, pp. 7-15, (with F. Best).
Easy Quantification of Improved Spare Parts Inventory Policies, Management Science, 2002, Vol. 48, pp. 1213-1225 (with A. Brown and W.H. Hausman).
The Effect of Product Variety on Supply-Chain Performance, European Journal of Operational Research, 2002, Vol. 143, pp. 548-556 (with J.R. Bradley).Optimizing Supply-Chain Performance by Sharing Advance Demand Information, European Journal of Operational Research, 2002, Vol. 142, pp. 81-107.
Optimal Commonality in Component Design, Operations Research, 2000, Vol. 48, pp. 1-19 (with M.L. Brandeau).
Variantenmanagement, Habilitationsschrift, Lehrstuhl für Betriebswirtschaftslehre, insbesondere Produktionswirtschaft, Universität Paderborn, 1999.
Optimal Assignment Policies for Automated Storage and Retrieval Systems with Stochastic Demands, Management Science, 1998, Vol. 44, pp. 142-148 (with M.L. Brandeau).
Designing a Zoned Automated Guided Vehicle System with Multiple Vehicles and Multiple Load Capacity, Operations Research, 1997, Vol. 45, pp. 857-873 (with M.L. Brandeau).
Designing a Single-Vehicle Automated Guided Vehicle System with Multiple Load Capacity, Transportation Science, 1996, Vol. 30, pp. 351-363 (with M.L. Brandeau).
Optimizing Simulated Annealing Schedules with Genetic Programming, European Journal of Operational Research, 1996, Vol. 92, pp. 402-416 (with A. Bölte).
Stochastic Models for Asynchronous Automated Material Handling Systems, Ph.D. Thesis, Department of Industrial Engineering and Engineering Management, Stanford University, 1994.

BOOKS
Handbuch Logistik, Chapter: Supply Chain Management, 2023, Springer (with F. Papier)
The Handbook of Behavioral Operations, Chapter: Behavioral Inventory Decisions, 2018, John Wiley & Sons (with M. Becker-Peth).
Supply Chain Segmentation: Best-in-Class Cases, Practical Insights and Foundations, 2017, Springer (with M. Protopappa-Sieke).
Operations Management, 2015, 3nd Edition, Pearson Studium, München.
How to Become a Supply Chain Champion – Hard Facts about Soft Factors, 2008, McKinsey & Company (with K. Behrenbeck, J. Küpper, K.H. Magnus, J. Großpietsch, and M. Leopoldseder).
Der Weg zum Supply-Chain-Champion – Harte Fakten zu Weichen Fragen, 2007, MI-Verlag, Landsberg (with K. Behrenbeck, J. Küpper, K.H. Magnus, J. Großpietsch, and M. Leopoldseder).
Supply Chain Excellence im Handel – Trends, Erfolgsfaktoren und Best-Practice-Beispiele, 2005, Financial Times Deutschland/Gabler, Wiesbaden (with K. Behrenbeck, J. Küpper and K.H. Magnus).
Supply Chain Excellence in Retail, McKinsey & Company (with K. Behrenbeck, J. Küpper and K.H. Magnus).
Allgemeine Betriebswirtschaftslehre – Koordination betrieblicher Entscheidungen, 3. Auflage, 2004, Springer, Berlin (with D. Adam, K. Backhaus and M. Voeth).
Supply Chain Champions – Wer sie sind und wie Sie einer werden, 2003, Financial Times Deutschland/Gabler, Wiesbaden (with K. Behrenbeck, R. Diederichs, J. Großpietsch, J. Küpper and M. Leopoldseder).
Supply Chain Champions – The Race for Service and Cost Leadership, McKinsey & Company (with K. Behrenbeck, R. Diederichs, J. Großpietsch, J. Küpper and M. Leopoldseder).