Operations Research 2025
Abstract Submission

2219. Workforce Planning Under Seniority Rules And Fairness Conditions

Invited abstract in session WE-10: Flow Lines and Fairness Considerations, stream Supply Chain Management and Production.

Wednesday, 16:30-18:00
Room: H16

Authors (first author is the speaker)

1. Guangrui Yang
Chair of Operations Management, Technical University of Munich
2. Rainer Kolisch
TUM School of Management, Technical University of Munich

Abstract

We are considering a medium-term workforce planning problem with a planning horizon of 36 months. The workforce consists of two classes, with 18 and 23 levels, respectively. In each class, workers automatically progress to the next level after one year. Regardless of their level, the workforce must cover the demand for class one and class two workers using regular time and overtime. The planning problem involves making dynamic decisions about the size and composition of the workforce in order to minimize labor costs. For each month, it has to be determined how many workers are hired at the lowest level of class one, and how many class one workers are promoted to class two. Thereby, seniority rules and fairness conditions must be respected. We model the problem as a mixed-integer program, which can be solved with Gurobi. We present a case study from an airline and the results of a computational study.

Keywords

Status: accepted


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