Professor Enno Siemsen
Procter & Gamble Bascom Professor for Operations & Information Management
Incoming Director of the Erdman Center for Technology & Operations Management
Wisconsin School of Business
University of Wisconsin – Madison


Behavioral and experimental research in operations management has become well accepted; using one of my recent research projects, I provide an introduction into the field, as well as an introduction into running behavioral experiments. Specifically, in three separate behavioral laboratory experiments, we compare newsvendor ordering decisions made directly to newsvendor, ordering decisions made in a decomposed way by soliciting point forecasts, uncertainty judgments, and service level decisions. We demonstrate that while this decomposition approach may sometimes lead to better decisions, it can also fail to improve decision performance, particularly if the underlying demand uncertainty is too high, or if the cost structure emphasizes underage costs. We further demonstrate that if accompanied by decision support in the form of suggested quantities, task decomposition becomes the better performing approach to decision making more generally. Decision support and task decomposition therefore appear as complementary methods to improve decision performance.

Speaker Bio

Enno Siemsen is the Procter & Gamble Bascom Professor for Operations & Information Management, as well as the incoming Director of the Erdman Center for Technology & Operations Management at Wisconsin School of Business, University of Wisconsin – Madison. He teaches courses in Operations Management, Sales & Operations Planning, Project Management and Global Operations Strategy in the MBA and Executive MBA Programs. He also teaches in customized Executive Education Programs. His expertise is in the fields of forecasting, operations strategy, product development, and project management. He is a member of the Institute for Operations Research and the Management Sciences as well as the Production and Operations Management Society. His research currently focuses on quality inspections & improvement, the organization of new product development processes and on human judgment in sales & operations planning processes. Siemsen has been published in leading outlets such as Management Science, Organization Science, Journal of Operations Management, Strategic Management Journal and Manufacturing & Service Operations Management. He currently serves as a department editor for the Production and Operations Management Journal and as an associate editor for the Journal of Operations Management and Decision Sciences.

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