Sören Guntram Harms

Performance comparison of management groups under centralised management

Mohsen Afsharian, Heinz Ahn, Sören Guntram Harms, 2019, Eur. J. Oper. Res..

A review of DEA approaches applying a common set of weights: The perspective of centralized management

Mohsen Afsharian, Sören Guntram Harms, Heinz Ahn, 2021, Eur. J. Oper. Res..

A non-convex meta-frontier Malmquist index for measuring productivity over time

Mohsen Afsharian, Sören Guntram Harms, Heinz Ahn, 2018 .