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Operations & Technology Management

Organisations achieve reliable performance and competitive advantage through the design and management of intra- and inter-organisational projects, processes and routines. The Operations & Technology Management group studies the determinants of superior performance from the perspective of these activities. Focused on practice-based research through deep engagement with partner organisations, group members address a wide spectrum of management challenges and employ a diverse set of research methods, including theoretical, analytical, empirical, and behavioural models that draw from operations research, economics, psychology and sociology, as well as state-of-the-art data analytics techniques applied to large datasets.

The research of the group falls broadly into the following categories:

  • Innovation and new product development (Stelios Kavadias, Christoph Loch, Nektarios Oraiopoulos)
  • Healthcare operations (Feryal Erhun, Houyuan Jiang, Stefan Scholtes)
  • Operations strategy (Jane Davies, Stelios Kavadias, Christoph Loch, Nektarios Oraiopoulos)
  • Supply chain management and risk (Feryal Erhun, Benn Lawson, Daniel Ralph)
  • Behavioural decision-making and behaviour analytics (Christoph Loch, Kishore Sengupta, David Stillwell)

Group members have leading roles in the following research centres:

  • The Entrepreneurship Centre
  • Centre for Health Leadership & Enterprise
  • Centre for Process Excellence & Innovation
  • Centre for Risk Studies
  • The Psychometrics Centre


  • Davies, Jane
    Senior Faculty in Management Practice, Director of the MBA Programme, Deputy Director of the Centre for Process Excellence & Innovation (CPEI)
  • Erhun, Feryal
    Reader in Operations Management
  • Jiang, Houyuan
    Reader in Management Science
  • Kavadias, Stylianos (Stelios)
    Margaret Thatcher Professor of Enterprise Studies in Innovation & Growth, Head of the Operations & Technology Management Subject Group
  • Lawson, Benn
    University Senior Lecturer in Operations Management, Director of the Centre for Process Excellence & Innovation (CPEI)
  • Loch, Christoph H.
    Director of Cambridge Judge Business School, Professor of Management Studies
  • Oraiopoulos, Nektarios
    University Lecturer in Operations Management
  • Ralph, Daniel
    Professor of Operations Research, Academic Director of the Centre for Risk Studies
  • Scholtes, Stefan
    Dennis Gillings Professor of Health Management, Director of the Doctoral and Master of Research Programmes, Academic Director of the Centre for Health Leadership & Enterprise (CCHLE)
  • Sengupta, Kishore
    Reader in Operations Management
  • Stillwell, David
    University Lecturer in Big Data Analystics & Quantitative Social Science

Lecturer and Senior Lecturer are equivalent to Assistant Professor in North American terminology. Reader is equivalent to Associate Professor with tenure in North American terminology.

PhD students

Research staff

Teaching associates

Honorary appointments

Group members actively contribute to both academic and business communities. They have published in top-tier academic journals such as Management Science, Operations Research, Manufacturing and Service Operations Management, Journal of Operations Management, Production and Operations Management, Mathematics of Operations Research, Proceedings of the National Academy of Sciences, and Journal of Personality and Social Psychology, as well as top-tier management journals such as Harvard Business Review and MIT Sloan Management Review. They currently serve or have served as associate editors at journals such as Management Science, Operations Research, Manufacturing and Service Operations Management, Journal of Operations Management, and Production and Operations Management.


Bonneville-Roussy, A., Stillwell, D., Kosinsky, M., Rust, J. (2017) "Age trends in musical preferences in adulthood: 1. Conceptualization and empirical investigation." Musicae Scientiae (DOI: 10.1177/1029864917691571)

Feldman, G., Huiwen, L., Kosinski, M. and Stillwell, D. (2017) "Frankly, we do give a damn: the relationship between profanity and honesty." Social Psychological and Personality Science (DOI: 10.1177/1948550616681055)

Loch, C.H. (2017) "Has megaproject management lost its way? Lessons from history." In Flyvbjerg, B. (ed.) The Oxford handbook of megaproject management. Oxford: Oxford University Press (forthcoming, ISBN: 9780198732242)

Mao, M., Stillwell, D., Kosinski, M. and Good, D. (2017) "Testing ageing theory among later middle-aged and older users using social media." In: Companion of the 2017 ACM Conference on Computer Supported Cooperative Work and Social Computing. Portland, OR: Association for Computing Machinery, 247-250 (DOI: 10.1145/3022198.3026352)

Park, G., Schwartz, H.A., Sap, M., Kern, M.L., Weingarten, E., Eichstaedt, J.C., Berger, J., Stillwell, D.J., Kosinski, M., Ungar, L.H., et al. (2017) "Living in the past, present, and future: measuring temporal orientation with language." Journal of Personality, 85(2): 270-280 (DOI: 10.1111/jopy.12239)

Rohrer, J.M., Egloff, B., Konsinski, M., Stillwell, D. and Schmukle, S.C. (2017) "In your eyes only? Discrepancies and agreement between self- and other-reports of personality from age 14 to 29." Journal of Personality and Social Psychology (DOI: 10.1037/pspp0000142)

Smith, W.B., Steinberg, J., Scholtes, S. and Mcnamara, I.R. (2017) "Medial compartment knee osteoarthritis: age-stratified cost-effectiveness of total knee arthroplasty, unicompartmental knee arthroplasty, and high tibial osteotomy." The Knee Surgery, Sports Traumatology, Arthroscopy, 25(3): 924-933 (DOI: 10.1007/s00167-015-3821-3)

Wu, Y., Schwartz, A., Stillwell, D. and Kosinski, M. (2017) "Birds of a feather do flock together: behavior-based personality-assessment method reveals personality similarity among couples and friends." Psychological Science (DOI: 10.1177/0956797616678187)


Agrawal, V.V., Kavadias, S. and Toktay, L.B. (2016) "The limits of planned obsolescence for conspicuous durable goods." Manufacturing and Service Operations Management, 18(2): 216-226 (DOI: 10.1287/msom.2015.0554)

Erhun, F., Malcolm, E., Kalani, M., Brayton, K., Nguyen, C., Asch, S.M., Platchek, T. and Milstein, A. (2016) "Opportunities to improve the value of outpatient surgical care." American Journal of Managed Care, 22(9): e329-e335

Farnadi, G., Sitaraman, G., Sushmita, S., Celli, F., Kosinski, M., Stillwell, D., Davalos, S., Moens, M-F. and De Cock, M. (2016) "Computational personality recognition in social media." User Modeling and User-Adapted Interaction, 26(2): 109-142 (DOI: 10.1007/s11257-016-9171-0)

Freeman, M., Savva N, Scholtes, S. (2016) "Gatekeepers at work: an empirical analysis of a maternity unit." Management Science (DOI: 10.1287/mnsc.2016.2512)

Giallombardo, G., Jiang, H. and Miglionico, G. (2016) "New formulations for the conflict resolution problem in the scheduling of television commercials." Operations Research, 64(4): 838-848 (DOI: 10.1287/opre.2016.1496)

Greenberg, D.M., Kosinski, M., Stillwell, D.J., Monteiro, B.L., Levitin, D.J. and Rentfrow, P.J. (2016) "The song is you: preferences for musical attribute dimensions reflect personality." Social Psychological and Personality Science, 7(6): 597-605 (DOI: 10.1177/1948550616641473)

Inkster, B., Stillwell, D., Kosinski, M. and Jones, P. (2016) "A decade into Facebook: where is psychiatry in the digital age?" Lancet Psychiatry, 3(11): 1087-1090 (DOI: 10.1016/S2215-0366(16)30041-4)

Joglekar, N.R., Davies, J. and Anderson, E.J. (2016) "The role of industry studies and public policies in production and operations management." Production and Operations Management, 25(12): 1977-2001 (DOI: 10.1111/poms.12640)

Kavadias, S., Ladas, K. and Loch, C. (2016) "The transformative business model." Harvard Business Review, 90-98

Loch, C.H. (2016) "It's not just others: conquering the hubris in yourself." In: Robinson, G. and Garrard, P. (eds.) The intoxication of power. Basingstoke: Palgrave, pp.101-116 (DOI: 10.1057/9781137439666_6)

Loch, C.H. (2016) "Creativity and risk taking aren't rational: behavioral operations in the management of technology." Production and Operations Management (DOI: 10.1111/poms.12666)

Loch, C.H., Mahring, M. and Sommer, S. (2016) "Supervising projects you don't (fully) understand: lessons for effective project governance by steering committees." California Management Review (DOI: 10.17863/CAM.856)

Mahalingam, V., Palkovics, M., Kosinski, M., Cek, I. and Stillwell, D. (2016) "A computer adaptive measure of delay discounting." Assessment (DOI: 10.1177/1073191116680448)

Martani, C., Jin, Y., Soga, K. and Scholtes, S. (2016) "Design with uncertainty: the role of future options for infrastructure integration." Computer-Aided Civil and Infrastructure Engineering, 31(10): 733-748 (DOI: 10.1111/mice.12214)

Matz, S.C., Gladstone, J.J. and Stillwell, D. (2016) "Money buys happiness when spending fits our personality." Psychological Science, 27(5): 715-725 (DOI: 10.1177/0956797616635200)

Park, G., Yaden, D.B., Schwartz, H.A., Kern, M.L., Eichstaedt, J.C., Kosinski, M., Stillwell, D., Ungar, L.H. and Seligman, M.E.P. (2016) "Women are warmer but no less assertive than men: gender and language on Facebook." PLOS ONE, 11(5): e0155885-e0155885 (DOI: 10.1371/journal.pone.0155885)

Schwartz, H.A., Sap, M., Kern, M.L., Eichstaedt, J.C., Kapelner, A., Agrawal, M., Blanco, E., Dziurzynski, L., Park, G., Stillwell, D., et al. (2016) "Predicting individual well-being through the language of social media." In: Proceedings of the Pacific Symposium on Biocomputing 2016. World Scientific: 516-527 (DOI: 10.1142/9789814749411_0047)

Sting, F.J. and Loch, C.H. (2016) "Implementing operations strategy: how vertical and horizontal coordination interact." Production and Operations Management, 25(7):1177-1193 (DOI: 10.1111/poms.12537)


Aghaee, S., Blackwell, A.F., Stillwell, D. and Kosinski, M. (2015) "Personality and intrinsic motivational factors in end-user programming." In: Proceedings of IEEE Symposium on Visual Languages and Human-Centric Computing. Atlanta, GA: Institute of Electrical and Electronics Engineers, pp.29-36 (DOI: 10.1109/VLHCC.2015.7357195)

Bilginer, Ö. and Erhun, F. (2015) "Production and sales planning in capacitated new product introductions." Production and Operations Management, 24(1): 42-53 (DOI: 10.1111/poms.12225)

Boyd, R.L., Wilson, S.R., Pennebaker, J.W., Kosinski, M., Stillwell, D.J. and Mihalcea, R. (2015) "Values in words: using language to evaluate and understand personal values." In: Proceedings of the 9th International Conference on Web and Social Media. Oxford: ICWSM, pp.31-40

Crouzeix, J-P, Eberhard, A. and Ralph, D. (2015) "(Convex) level sets integration." Journal of Optimization Theory and Applications, 171(3): 865-886 (DOI: 10.1007/s10957-015-0795-8)

Erhun, F., Mistry, B., Platchek, T., Milstein, A., Narayanan, V.G. and Kaplan, R.S. (2015) "Time-driven activity-based costing of multivessel coronary artery bypass grafting across national boundaries to identify improvement opportunities: study protocol." BMJ Open, 5(8): e008765 (DOI: 10.1136/bmjopen-2015-008765)

Greenberg, D.M., Baron-Cohen, S., Stillwell, D.J., Kosinski, M. and Rentfrow, P.J. (2015) "Musical preferences are linked to cognitive styles." PLoS One, 10(7): e0131151 (DOI: 10.1371/journal.pone.0131151)

Handfield, R.B., Cousins, P.D., Lawson, B. and Petersen, K.J. (2015) "How can supply management really improve performance? A knowledge-based model of alignment capabilities." Journal of Supply Chain Management, 51(3): 3-17 (DOI: 10.1111/jscm.12066)

Hutchison-Krupat, J. and Kavadias, S. (2015) "Strategic resource allocation: top-down, bottom-up, and the value of strategic buckets." Management Science, 61(2): 391-412 (DOI: 10.1287/mnsc.2013.1861)

Karaer, O. and Erhun, F. (2015) "Quality and entry deterrence." European Journal of Operational Research, 240(1): 292-303 (DOI: 10.1016/j.ejor.2014.07.016)

Kelly, S., Chaplin, A., Coburn, A.W., Copic, J., Evan, T., Neduv, E., Ralph, D., Ruffle, S.J., Schwendner, P., Skelton, A., et al. (2015) Stress test scenario: Eurozone meltdown. Cambridge: Cambridge Centre for Risk Studies, University of Cambridge.

Kelly, S., Yeo, J.Z., Coburn, A., Copic, J., Crawford-Brown, D., Foley, A., Neduv, E., Ralph, D. and Saidi, F. (2015) Unhedgeable risk: how climate change sentiment impacts investment. Cambridge: Cambridge Centre for Risk Studies, University of Cambridge.

Kosinski, M., Matz, S.C., Gosling, S.D., Popov, V. and Stillwell, D. (2015) "Facebook as a research tool for the social sciences: opportunities, challenges, ethical considerations, and practical guidelines." American Psychologist, 70(6): 543-556 (DOI: 10.1037/a0039210)

Kuntz, L., Mennicken, R. and Scholtes, S. (2015) "Stress on the ward: evidence of safety tipping points in hospitals." Management Science, 61(4): 754-771 (DOI: 10.1287/mnsc.2014.1917)

Lawson, B., Tyler, B.B. and Potter, A. (2015) "Strategic suppliers' technical contributions to new product advantage: substitution and configuration options." Journal of Product Innovation Management, 32(5): 760-776 (DOI: 10.1111/jpim.12235)

Lawson, B., Krause, D. and Potter, A. (2015) "Improving supplier new product development performance: the role of supplier development." Journal of Product Innovation Management, 32(5): 777-792 (DOI: 10.1111/jpim.12231)

Liu, P., Tov, W., Kosinski, M., Stillwell, D.J. and Qiu, L. (2015) "Do Facebook status updates reflect subjective well-being?" Cyberpsychology, Behavior, and Social Networking, 18(7): 373-379 (DOI: 10.1089/cyber.2015.0022)

Na, J., Kosinski, M. and Stillwell, D.J. (2015) "When a new tool is introduced in different cultural contexts: individualism-collectivism and social network on Facebook." Journal of Cross-Cultural Psychology, 46(3): 355-370 (DOI: 10.1177/0022022114563932)

Özkan-Seely, G.F., Gaimon, C. and Kavadias, S. (2015) "Dynamic knowledge transfer and knowledge development for product and process design teams." Manufacturing and Service Operations Management, 17(2): 177-190 (DOI: 10.1287/msom.2014.0507)

Park, G., Schwartz, H.A., Eichstaedt, J.C., Kern, M.L., Kosinski, M., Stillwell, D.J., Ungar, L.H. and Seligman, M.E.P. (2015) "Automatic personality assessment through social media language." Journal of Personality and Social Psychology, 108(6): 934-952 (DOI: 10.1037/pspp0000020)

Ralph, D. and Smeers, Y. (2015) "Risk trading and endogenous probabilities in investment equilibria." SIAM Journal on Optimization, 25(4): 2589-2611 (DOI: 10.1137/110851778)

Schlapp, J., Oraiopoulos, N. and Mak, V. (2015) "Resource allocation decisions under imperfect evaluation and organizational dynamics." Management Science, 61(9): 2139-2159 (DOI: 10.1287/mnsc.2014.2083)

Singh, N., Kavadias, S. and Subramanian, R. (2015) "Product quality and the value of asymmetric information under supplier-specified contracts." Indian School of Business Working Papers Series

Sommer, S.C., Bendoly, E. and Kavadias, S. (2015) "Search strategies in complex and ambiguous problem spaces: performance comparisons across group structures through a controlled experiment." Social Science Research Network (SSRN)

Sting, F.J., Loch, C.H. and Stempfhuber, D. (2015) "Accelerating projects by encouraging help." MIT Sloan Management Review, 56(3): 1-9

Wilmot, M.P., DeYoung, C.G., Stillwell, D. and Kosinski, M. (2015) "Self-monitoring and the metatraits." Journal of Personality, 84(3): 335-347 (DOI: 10.1111/jopy.12162)

Wilmot, M.P., Kostal, J.W., Stillwell, D. and Kosinski, M. (2015) "Using item response theory to develop measures of acquisitive and protective self-monitoring from the original self-monitoring scale." Assessment, (DOI: 10.1177/1073191115615213)

Youyou, W., Kosinski, M. and Stillwell, D. (2015) "Computer-based personality judgments are more accurate than those made by humans." Proceedings of the National Academy of Sciences, 112(4): 1036-1040 (DOI: 10.1073/pnas.1418680112)


Agrawal, V. and Oraiopoulos, N. (2014) "The role of decision rights in collaborative development initiatives." Social Science Research Network (SSRN) (DOI: 10.2139/ssrn.2436507)

Bellos, I. and Kavadias, S. (2014) "A framework for service design." Social Science Research Network (SSRN)

Donaghey, J., Reinecke, J., Niforou, C. and Lawson, B. (2014) "From employment relations to consumption relations: balancing labor governance in global supply chains." Human Resource Management, 53(2): 229-252 (DOI: 10.1002/hrm.21552)

Erzurumlu, S.S., Davies, J. and Joglekar, N. (2014) "Managing highly innovative projects: the influence of design characteristics on project valuation." IEEE Transactions on Engineering Management, 61(2): 349-361 (DOI: 10.1109/TEM.2014.2304957)

Farnadi, G., Sitaraman, G., Rohani, M., Kosinski, M., Stillwell, D., Moens, M.F., Davalos, S. and De Cock, M. (2014) "How are you doing? Emotions and personality in Facebook." In: UMAP 2014 Extended Proceedings, 22nd Conference on User Modeling, Adaptation, and Personalization (UMAP2014), Aalborg.

He, Q., Glas, C.A.W., Kosinski, M., Stillwell, D.J. and Veldkamp, B.P. (2014) "Predicting self-monitoring skills using textual posts on Facebook." Computers in Human Behavior, 33: 69-78 (DOI: 10.1016/j.chb.2013.12.026)

Hult, E., Jiang, H. and Ralph, D. (2014) "Exact computational approaches to a stochastic uncapacitated single allocation p-hub center problem." Computational Optimization and Applications, 59: 185-200 (DOI: 10.1007/s10589-013-9629-5)

Hult, E., Jiang, H. and Ralph, D. (2014) "Exact computational approaches to a stochastic uncapacitated single allocation p-hub center problem." Computational Optimization and Applications, 59(1): 185-200 (DOI: 10.1007/s10589-013-9629-5)

Jansen, M., Oraiopoulos, N. and Ralph, D. (2014) "Contracting for continuity of mission critical services." In: INFORMS Annual Meeting, San Francisco, CA.

Jiang, H. and Miglionico, G. (2014) "Airline network revenue management with buy-up." Optimization, 63(6): 849-865 (DOI: 10.1080/02331934.2014.896079)

Kalkanci, B., Chen, K.Y. and Erhun, F. (2014) "Complexity as a contract design factor: a human-to-human experimental study." Production and Operations Management, 23(2): 269-284 (DOI: 10.1111/poms.12067)

Kavadias, S. (2014) "Portfolio decision analysis: improved methods for resource allocation." Imterfaces, 44(1): 113-114 (DOI: 10.1287/inte.2013.0722)

Kavadias, S. (2014) "10-year anniversary of the new product development, R&D, and project management department in production and operations management - progress, thoughts, and perspectives." Production and Operations Management, 23 (8): 1259-1264 (DOI: 10.1111/poms.12256)

Kern, M.L., Eichstaedt, J.C., Schwartz, H.A., Park, G., Ungar, L.H., Stillwell, D.J., Kosinski, M., Dziurzynski, L. and Seligman, M.E.P. (2014) "From 'Sooo excited!!!' to 'So proud': using language to study development." Developmental Psychology, 50(1): 178-188 (DOI: 10.1037/a0035048)

Kim, Y.H., Sting, F.J. and Loch, C.H. (2014) "Top-down, bottom-up, or both? Toward an integrative perspective on operations strategy formation." Journal of Operations Management, 32(7-8): 462-474 (DOI: 10.1016/j.jom.2014.09.005)

Kosinski, M., Bachrach, Y., Kohli, P., Stillwell, D. and Graepel, T. (2014) "Manifestations of user personality in website choice and behaviour on online social networks." Machine Learning, 95(3): 357-380 (DOI: 10.1007/s10994-013-5415-y)

Lee, Y.S. and Scholtes, S. (2014) "Empirical prediction intervals revisited." International Journal of Forecasting, 30(2): 217-234 (DOI: 10.1016/j.ijforecast.2013.07.018)

Mahalingam, V., Stillwell, D., Kosinski, M., Rust, J. and Kogan, A. (2014) "Who can wait for the future? A personality perspective." Social Psychological and Personality Science, 5(5): 573-583 (DOI: 10.1177/1948550613515007)

Oraiopoulos, N. and Kavadias, S. (2014) "The path-dependent nature of R&D search: implications for (and from) competition." Production and Operations Management, 23(8): 1450-1461 (DOI: 10.1111/poms.12198)

Rife, S.C., Cate, K.L., Kosinski, M. and Stillwell, D. (2014) "Participant recruitment and data collection through Facebook: the role of personality factors." International Journal of Social Research Methodology, 19(1): 69-83 (DOI: 10.1080/13645579.2014.957069)

Roden, S. and Lawson, B. (2014) "Developing social capital in buyer-supplier relationships: the contingent effect of relationship-specific adaptations." International Journal of Production Economics, 151: 89-99 (DOI: 10.1016/j.ijpe.2014.01.008)

Sap, M., Park, G., Eichstaedt, J.C., Kern, M.L., Stillwell, D., Kosinski, M. and Ungar, L.H. (2014) "Developing age and gender predictive lexica over social media." In: Proceedings of the 2014 Conference on Empirical Methods in Natural Language Processing (EMNLP), Association for Computational Linguistics.

Savva, N. and Scholtes, S. (2014) "Opt-out options in new product co-development partnerships." Production and Operations Management, 23(8): 1370-1386 (DOI: 10.1111/poms.12059)

Schwartz, H.A., Eichstaedt, J., Kern, M.L., Park, G., Sap, M., Stillwell, D., Kosinski, M. and Ungar, U. (2014) "Towards assessing changes in degree of depression through Facebook." In: Workshop on Computational Linguistics and Clinical Psychology: From Linguistic Signal to Clinical Reality, Association for Computational Linguistics.

Usta, M., Erhun, F. and Hausman, W.H. (2014) "Supply licensing when the manufacturer strategically commits to invest in R&D." Naval Research Logistics, 61(4): 341-350 (DOI: 10.1002/nav.21586)

Wang, N., Kosinski, M., Stillwell, D.J. and Rust, J. (2014) "Can well-being be measured using facebook status updates? Validation of Facebook's gross national happiness index." Social Indicators Research, 115(1): 483-491 (DOI: 10.1007/s11205-012-9996-9)


Cantador, I., Fernandez-Tobias, I., Bellogin, A., Kosinski, M. and Stillwell, D. (2013) "Relating personality types with user preferences in multiple entertainment domains." In: EMPIRE 2013 Workshop at UMAP Conference, Rome, Italy.

Chao, R.O. and Kavadias, S. (2013) "R&D intensity and the new product development portfolio." IEEE Transactions on Engineering Management, 60(4): 664-675 (DOI: 10.1109/TEM.2013.2257792)

Chung Y.T. and Erhun, F. (2013) "Designing supply contracts for perishable goods with two periods of shelf life." IIE Transactions (Institute of Industrial Engineers), 45(1): 53-67 (DOI: 10.1080/0740817X.2012.654847)

Davies, J. and Joglekar, N. (2013) "Supply chain integration, product modularity, and market valuation: evidence from the solar energy industry." Production and Operations Management, 22(6): 1494-1508 (DOI: 10.1111/poms.12052)

Erat, S., Kavadias, S. and Gaimon, C. (2013) "The pitfalls of subsystem integration: when less is more." Management Science, 59(3): 659-676 (DOI: 10.1287/mnsc.1120.1592)

Hogarth, L., Stillwell, D.J. and Tunney, R.J. (2013) "BIS impulsivity and acute nicotine exposure are associated with discounting global consequences in the Harvard game." Human Psychopharmacology: Clinical and Experimental, 28(1): 72-79 (DOI: 10.1002/hup.2285)

Holmberg, P., Newbery, D., and Ralph, D. (2013) "Supply function equilibria: step functions and continuous representations." Journal of Economic Theory, 148(4): 1509-1551 (DOI: 10.1016/j.jet.2013.04.020)

Hutchison-Krupat, J. and Kavadias, S. (2013) "Incentive design for cross-functional teams." Social Science Research Network (SSRN) (DOI: 10.2139/ssrn.1604727)

Kayis, E., Erhun, F. and Plambeck, E.L. (2013) "Delegation vs. control of component procurement under asymmetric cost information and simple contracts." Manufacturing and Service Operations Management, 15(1): 45-56 (DOI: 10.1287/msom.1120.0395)

Kempf, K.G., Erhun, F., Hertzler, E.F., Rosenberg, T.R. and Peng, C. (2013) "Optimizing capital investment decisions at Intel Corporation." Interfaces, 43(1): 62-78 (DOI: 10.1287/inte.1120.0659)

Kern, M.L., Eichstaedt, J.C., Schwartz, H.A., Dziurzynski, L., Ungar, L.H., Stillwell, D.J., Kosinski, M., Ramones, S.M. and Seligman, M.E.P. (2013) "The online social self: an open vocabulary approach to personality." Assessment, 21(2): 158-169 (DOI: 10.1177/1073191113514104)

Kosinski, M., Stillwell, D. and Graepel, T. (2013) "Private traits and attributes are predictable from digital records of human behavior." Proceedings of the National Academy of Sciences, 110(15): 5802-5805 (DOI: 10.1073/pnas.1218772110)

Kraft, T., Erhun, F., Carlson, R.C. and Rafinejad, D. (2013) "Replacement decisions for potentially hazardous substances." Production and Operations Management, 22(4): 958-975 (DOI: 10.1111/poms.12021)

Kraft, T., Zheng, Y. and Erhun, F. (2013) "The NGO's dilemma: how to influence firms to replace a potentially hazardous substance." Manufacturing and Service Operations Management, 15(4): 649-669 (DOI: 10.1287/msom.2013.0440)

Kuntz, L. and Scholtes, S. (2013) "Physicians in leadership: the association between medical director involvement and staff-to-patient ratios." Health Care Management Science, 16(2): 129-138 (DOI: 10.1007/s10729-012-9218-7)

Loch, C.H., Sengupta, K. and Ahmad, M.G. (2013) "The microevolution of routines: how problem solving and social preferences interact." Organization Science, 24(1): 99-115 (DOI: 10.1287/orsc.1110.0719)

Markovikj, D., Gievska, S., Kosinski, M. and Stillwell, D. (2013) "Mining Facebook data for predictive personality modeling." In: Proceedings of the Seventh International Conference on Weblogs and Social Media, Association for the Advancement of Artificial Intelligence, Cambridge, MA.

Chung, Y.T., Erhun, F. and Kraft, T. (2013) "Improving Stanford Blood Center's platelet supply chain." In: Munson, C. (ed.) The supply chain management casebook. New Jersey: FT Press, Chapter 2 (Case 3), pp. 39-49

Potter, A. and Lawson, B. (2013) "Help or hindrance? Causal ambiguity and supplier involvement in new product development teams." Journal of Product Innovation Management, 30(4): 794-808 (DOI: 10.1111/jpim.12027)

Rentfrow, P.J., Gosling, S.D., Jokela, M., Stillwell, D.J., Kosinski, M. and Potter, J. (2013) "Divided we stand: three psychological regions of the United States and their political, economic, social, and health correlates." Journal of Personality and Social Psychology, 105(6): 996-1012 (DOI: 10.1037/a0034434)

Schwartz, H.A., Eichstaedt, J.C., Dziurzynski, L., Kern, M.L., Blanco, E., Kosinski, M., Stillwell, D., Seligman, M.E.P. and Ungar, L.H. (2013) "Toward personality insights from language exploration in social media." In: 2013 AAAI Spring Symposium Series, Association for the Advancement of Artificial Intelligence, Palo Alto, CA.

Schwartz, H.A., Eichstaedt, J.C., Kern, M.L., Dziurzynski, L., Ramones, S.M., Agrawal, M., Shah, A., Kosinski, M., Stillwell, D., Seligman, M.E.P., et al. (2013) "Personality, gender, and age in the language of social media: the open-vocabulary approach." PLoS ONE, 8(9): e73791-e73791 (DOI: 10.1371/journal.pone.0073791)

Urda, J. and Loch, C.H. (2013) "Social preferences and emotions as regulators of behavior in processes." Journal of Operations Management, 31(1-3): 6-23 (DOI: 10.1016/j.jom.2012.11.007)

Wogrin, S., Hobbs, B.F., Ralph, D., Centeno, E. and Barquin, J. (2013) "Open versus closed loop capacity equilibria in electricity markets under perfect and oligopolistic competition." Mathematical Programming, 140(2): 295-322 (DOI: 10.1007/s10107-013-0696-2)


Bachrach, Y., Kosinski, M., Graepel, T., Kohli, P. and Stillwell, D. (2012) "Personality and patterns of Facebook usage." In: Proceedings of the 4th Annual ACM Web Science Conference, Web Science, Evanston, IL. (DOI: 10.1145/2380718.2380722)

Cui, Z., Loch, C., Grossmann, B. and He, R. (2012) "How provider selection and management contribute to successful innovation outsourcing: an empirical study at Siemens." Production and Operations Management, 21(1): 29-48 (DOI: 10.1111/j.1937-5956.2011.01237.x)

Eralp, M.N., Scholtes, S., Martell, G., Winter, R. and Exley, A.R. (2012) "Screening of healthcare workers for tuberculosis: development and validation of a new health economic model to inform practice." BMJ Open, 2: e000630 (DOI: 10.1136/bmjopen-2011-000630)

Jiang, H., Pang, Z. and Savin, S. (2012) "Performance-based contracts for outpatient medical services." Manufacturing and Service Operations Management, 14(4): 654-669 (DOI: 10.1287/msom.1120.0402)

Kalkanci, B. and Erhun, F. (2012) "Pricing games and impact of private demand information in decentralized assembly systems." Operations Research, 60(5): 1142-1156 (DOI: 10.1287/opre.1120.1084)

Kosinski, M., Stillwell, D., Kohli, P., Bachrach, Y. and Graepel, T. (2012) "Personality and website choice." In: Proceedings of the 4th Annual ACM Web Science Conference, Web Science, Evanston, IL.

Kraft, T., Chung, Y.T. and Erhun, F. (2012) "Case article: KEY Electronics - sourcing and warehouse analysis." INFORMS Transactions on Education, 12(2): 89-91 (DOI: 10.1287/ited.1110.0065ca)

Lawson, B. and Potter, A. (2012) "Determinants of knowledge transfer in inter-firm new product development projects." International Journal of Operations & Production Management, 32(10): 1228-1247 (DOI: 10.1108/01443571211274530)

Lawson, B., Samson, D. and Roden, S. (2012) "Appropriating the value from innovation: inimitability and the effectiveness of isolating mechanisms." R&D Management, 42(5): 420-434 (DOI: 10.1111/j.1467-9310.2012.00692.x)

Lévesque, M., Joglekar, N. and Davies, J. (2012) "A comparison of revenue growth at recent-IPO and established firms: the influence of SG&A, R&D and COGS." Journal of Business Venturing, 27(1): 47-61 (DOI: 10.1016/j.jbusvent.2010.08.001)

Loch, C.H., Sting, F.J., Huchzermeier, A. and Decker, C. (2012) "Finding the profit in fairness." Harvard Business Review, 90(9)

Oraiopoulos, N. and Kavadias, S. (2012) "Senior management committees: do more diverse perspectives lead to fewer project selection errors?" Social Science Research Network (SSRN) (DOI: 10.2139/ssrn.2136927)

Oraiopoulos, N., Ferguson, M.E. and Toktay, L.B. (2012) "Relicensing as a secondary market strategy." Management Science, 58(5): 1022-1037 (DOI: 10.1287/mnsc.1110.1456)

Peng, C., Erhun, F., Hertzler, E.F. and Kempf, K.G. (2012) "Capacity planning in the semiconductor industry: dual-mode procurement with options." Manufacturing and Service Operations Management, 14(2): 170-185 (DOI: 10.1287/msom.1110.0361)

Potter, A., Murray, J., Lawson, B. and Graham, S. (2012) "Trends in product recalls within the agri-food industry: empirical evidence from the USA, UK and the Republic of Ireland." Trends in Food Science & Technology, 28(2): 77-86 (DOI: 10.1016/j.tifs.2012.06.017)

Quercia, D., Las Casas, D.B., Pesce, J.P., Stillwell, D., Kosinski, M., Almeida, V. and Crowcroft, J. (2012) "Facebook and privacy: the balancing act of personality, gender, and relationship currency." In: Proceedings of the Sixth International AAAI Conference on Weblogs and Social Media (ICWSM), Association for the Advancement of Artificial Intelligence, Palo Alto, CA.

Quercia, D., Lambiotte, R., Stillwell, D., Kosinski, M. and Crowcroft, J. (2012) "The personality of popular Facebook users." In: Proceedings of the ACM Conference on Computer Supported Cooperative Work (CSCW) (DOI: 10.1145/2145204.2145346)

Rentfrow, P.J., Goldberg, L.R., Stillwell, D.J., Kosinski, M., Gosling, S.D. and Levitin, D.J. (2012) "The song remains the same: a replication and extension of the MUSIC model." Music Percept, 30(2): 161-185 (DOI: 10.1525/mp.2012.30.2.161)

Scholtes, S. (2012) Introduction to piecewise differentiable equations. New York: Springer (DOI: 10.1007/978-1-4614-4340-7)

Stillwell, D.J. and Tunney, R.J. (2012) "Effects of measurement methods on the relationship between smoking and delay reward discounting." Addiction, 107(5): 1003-1012 (DOI: 10.1111/j.1360-0443.2011.03742.x)

Stillwell, D.J. and Tunney, R.J. (2012) "Individuals' insight into intrapersonal externalities." Judgment and Decision Making, 7(4): 390-401

Wagner, S.M., Grosse-Ruyken, P.T. and Erhun, F. (2012) "The link between supply chain fit and financial performance of the firm." Journal of Operations Management, 30(4): 340-353 (DOI: 10.1016/j.jom.2012.01.001)

Welbourne, J., Gupta, A., Scholtes, S., Dean, J. and Ahluwalia, J. (2012) "Training: where tomorrow's leaders hit new heights." Health Service Journal, 122(6327):19-21


Bellos, I. and Kavadias, S. (2011) "The design challenges of experiential services." Social Science Research Network (SSRN) (DOI: 10.2139/ssrn.1912166)

Bhattacharya, S. and Kavadias, S. (2011) "Optimal sequential investments in new product development with emerging technologies and learning." INSEAD Working Paper Series (DOI: 10.2139/ssrn.1959968)

Carey, S. and Lawson, B. (2011) "Governance and social capital formation in buyer‐supplier relationships." Journal of Manufacturing Technology Management, 22(2): 152-170 (DOI: 10.1108/17410381111102199)

Carey, S., Lawson, B. and Krause, D.R. (2011) "Social capital configuration, legal bonds and performance in buyer-supplier relationships." Journal of Operations Management, 29(4): 277-288 (DOI: 10.1016/j.jom.2010.08.003)

Cousins, P.D., Lawson, B., Petersen, K.J. and Handfield, R.B. (2011) "Breakthrough scanning, supplier knowledge exchange, and new product development performance." Journal of Product Innovation Management, 28(6): 930-942 (DOI: 10.1111/j.1540-5885.2011.00854.x)

de Neufville, R. and Scholtes, S. (2011) Flexibility in engineering design (engineering systems). Cambridge, MA: MIT Press (ISBN: 9780262016230)

Erhun Oguz, F. (2011) "Contract complexity and performance." In: Geunes J. (ed.) Tutorials in operations research: transforming research into action. Hanover: Institute for Operations Research and the Management Sciences (INFORMS): 126-147 (DOI: 10.1287/educ.1110.0089)

Erhun Oguz, F. and Bílgíner, O. (2011) "Managing product introductions and transitions." In: Wiley encyclopedia of operations research and management science. (DOI: 10.1002/9780470400531.eorms0489)

Erhun Oguz, F. and Deleris, L.A. (2011) "Quantitative risk assessment in supply chains: a case study based on engineering risk analysis concepts." In: Kempf, K.G., Keskinocak, P. and Uzsoy, R. (eds.) Planning production and inventories in the extended enterprise: a state-of-the-art handbook. New York: Springer, International Series in Operations Research & Management Science (152): 105-131 (DOI: 10.1007/978-1-4419-8191-2_5)

Erhun Oguz, F., Keskinocak, P. and Tayur, S. (2011) "Dynamic procurement, quantity discounts, and supply chain efficiency." In: Choi T.M. and Cheng T.C.E. (eds.) Supply chain coordination under uncertainty. Springer Science & Business Media, 1: 219-233 (DOI: 10.1007/978-3-642-19257-9_9)

Erhun, F. (2011) "Collaborative procurement." In: Cochran J.J., Cox, L.A., Keskinocak, P., Kharoufeh, J.P. and Cole Smith, J. (eds.) Wiley encyclopedia of operations research and management science (DOI: 10.1002/9780470400531.eorms0156)

Hagger-Johnson, G., Egan, V. and Stillwell, D. (2011) "Are social networking profiles reliable indicators of sensational interests?" Journal of Research in Personality, 45(1): 71-76 (DOI: 10.1016/j.jrp.2010.11.013)

Jiang, H. and Pang, Z. (2011) "Network capacity management under competition." Computational Optimization and Applications, 50(2): 287-326 (DOI: 10.1007/s10589-010-9340-8)

Jiang, H., Netessine, S. and Savin, S. (2011) "Robust newsvendor competition under asymmetric information." Operations Research, 59(1): 254-261 (DOI: 10.1287/opre.1100.0858)

Kalkanci, B., Chen, K.Y. and Erhun, F. (2011) "Contract complexity and performance under asymmetric demand information: an experimental evaluation." Management Science, 57(4): 689-704 (DOI: 10.1287/mnsc.1110.1318)

Loch, C. and Kavadias, S. (2011) "Implementing strategy through projects." In: Morris, P.W.G., Pinto, J. and Söderlund, J. (eds.) The Oxford handbook of project management. Oxford: Oxford University Press (DOI: 10.1093/oxfordhb/9780199563142.003.0010)

Loch, C.H. and Payne, F. (2011) "Strategic management: developing policies and strategies." In: Cooke-Davies, T. (ed.) Aspects of complexity: managing projects in a complex world. Atlanta, GA: Project Management Institute.

Privett, N. and Erhun, F. (2011) "Efficient funding: auditing in the nonprofit sector." Manufacturing and Service Operations Management, 13(4): 471-488 (DOI: 10.1287/msom.1110.0345)

Quercia, D., Kosinski, M., Stillwell, D. and Crowcroft J. (2011) "Our Twitter profiles, our selves: predicting personality with Twitter." In: Proceedings - 2011 IEEE International Conference on Privacy, Security, Risk and Trust and IEEE International Conference on Social Computing, IEEE (DOI: 10.1109/PASSAT/SocialCom.2011.26)

Ralph, D. and Stein, O. (2011) "The C-Index: a new stability concept for quadratic programs with complementarity constraints." Mathematics of Operations Research, 36(3): 504-526 (DOI: 10.1287/moor.1110.0501)

Ralph, D. and Xu, H.F. (2011) "Convergence of stationary points of sample average two-stage stochastic programs: a generalized equation approach." Mathematics of Operations Research, 36(3): 568-592 (DOI: 10.1287/moor.1110.0506)

Wu, Y., Loch, C. and Ahmad, G. (2011) "Status and relationships in social dilemmas of teams." Journal of Operations Management, 29(7-8): 650-662 (DOI: 10.1016/j.jom.2011.03.004)

The research agenda of the group is stimulated by regular contacts with senior personnel of regional, national and international organisations such as Bank of China, British Airways, BP, Ernst & Young, Ofgem, Defra, Shell, UK Department for Transport, NICE and Cambridge University Hospitals.

The group also maintains long-standing collaborations with leading academics and cognate groups in the UK, Europe and across the Atlantic.

Upcoming seminars

Lent term 2018

Supply Chain Management through Cascading
Dr Feryal Erhun, Cambridge Judge Business School

12:30-14:00, 9 January 2018
Room W2.01, Cambridge Judge Business School


This study focuses on contracting for a three-tier supply chain consisting of a buyer, tier one supplier, and tier two sub-supplier where disruptions of random length occur at tier two. As is common in many supply chains, the buyer has a direct relationship with the tier one supplier but not the tier two sub-supplier; that is, the buyer has limited supply chain visibility. Both the supplier and sub-supplier can reserve emergency capacity prior to observing the disruption to protect the supply chain from the disruption. The study looks at how the buyer and the supplier can guarantee that the correct level of emergency capacity is built prior to the disruption. Due to two types of inefficiencies - a special form of double-marginalisation and the substitution effect - the supply chain is misaligned in its decentralised form. Although the lack of visibility prevents the buyer from directly contracting with the sub-supplier to eliminate these inefficiencies, they can still coordinate the supply chain through cascading, for example, contracting with the supplier, who in turn contracts with the sub-supplier. Despite supply chain coordination, the supplier benefits from the buyer’s limited supply chain visibility.

Collaborative work with Dr Georg Schorpp and Professor Hau Lee.

Speaker bio

Dr Feryal Erhun is Reader in Operations Management Cambridge Judge Business School, University of Cambridge. Feryal’s research interests are in the topic of supply chain management, including risk management in supply chains, new product transitions, and supply contracts. Her current research also includes studies healthcare operations.

Dr Erhun is a strong proponent of practice-based research. In collaboration with Intel Corporation, her research group has designed a decision-support system for optimising capital investment decisions for firms in capital-intensive industries. This work has been selected as one of the finalists in the 2012 Edelman competition and Feryal has been inducted as an Edelman Laureate. She is also a recipient of 2006 NSF CAREER Award.

Feryal serves on the editorial boards of Manufacturing and Service Operations Management and Production and Operations Management. She received her PhD in Business Administration, with a concentration in Production and Operations Management from the Graduate School of Industrial Administration, Carnegie Mellon University in 2002. She holds a BS and a MS in Industrial Engineering from Bilkent University.

A Large-Scale Optimisation Model for Replicating Portfolios in the Life Insurance Industry
Professor Karl Schmedders, University of Zurich

13:00-14:00, 16 January 2018
Room W2.02, Cambridge Judge Business School


Replicating portfolios have emerged as an important tool in the life insurance industry, used for the valuation of companies' liabilities. This paper describes the replicating portfolio (RP) model for approximating life insurance liabilities in place in a large global insurance company. We describe the challenges presented by the latest solvency regimes in Europe and how the RP model enables this company to comply with the Swiss Solvency Test. The model minimises the L1 error between the discounted life insurance liability cash flows and the discounted RP cash flows over a multi-period time horizon for a broad range of different future economic scenarios. A numerical application of the RP model to empirical data sets demonstrates that the model delivers RPs that match the liabilities and perform well for economic capital calculations.

Speaker bio

Karl Schmedders has been a Professor of Quantitative Business Administration in the Faculty of Business, Economics, and Informatics at the University in Zurich since 2008. In addition, he is a Visiting Professor of Executive Education at the Kellogg School of Management, Northwestern University in Evanston, USA.

Karl received a PhD in operations research from Stanford University in 1996. After a two-year post-doc at the Hoover Institution, a thinktank on the Stanford campus, he became an assistant professor of managerial economics and decision sciences at the Kellogg School of Management, Northwestern University. He was promoted to associate professor in 2001 and received tenure at Kellogg in 2005. He continued to work at Kellogg until his departure to Zurich.

His research focuses on computational economics and finance. He applies numerical solution techniques to complex economic and financial models shedding light on relevant practical problems. He has published numerous research articles in international academic journals such as Econometrica, The Review of Economic Studies, The Journal of Finance, and The Review of Financial Studies, among others.

Contact us

Get in touch with the Operations & Technology Management subject group via their Administrator, Emily Brown:

Seminars are added as they are arranged.

View a list of all Cambridge Judge research seminars