Procurement Talks: Four perspectives on tranformation (Episode 3: Sustainability - Managing the unavoidable)

Guest: Christian Bergmann, Head of Purchasing & Logistics (Leiter Einkauf und Logistik), TeekanneStudent hosts: Christina Lillge, Franziska Freitag, Michelle Lewis, Luca Stienen
Sustainability isn’t optional anymore. With Teekanne’s Christian Bergmann, we unpack how purchasing turns new rules and expectations into practical supplier action.
REFERENCES
Minute: 00:00
Polman, P., & Winston, A. (2021). Net Positive: How courageous companies thrive by giving more than they take. Boston: Harvard Business Review Press.
⁠Umweltbundesamt. (2024). Umwelt- und Energiemanagement. ⁠
⁠GOV.UK. (2015). Modern Slavery Act 2015. ⁠
⁠Van Weele, A. J. (2010). Purchasing & supply chain management: Analysis, strategy, planning and practice (5th ed.). Andover: Cengage Learning EMEA. European Commission (EC). (2024). Corporate sustainability due diligence. ⁠
⁠Minute: 04:00⁠
⁠Thomas, R. W., Fugate, B. S., Robinson, J. L., & Tasçioglu, M. (2016). The impact of environmental and social sustainability practices on sourcing behavior. International Journal of Physical Distribution & Logistics Management, 46(5), 469–491. ⁠
⁠George, P., & Williamson, O. E. (1987). The economic institutions of capitalism: Firms, markets, relational contracting. The Canadian Journal of Economics / Revue Canadienne d’Économique, 20(2), 442. ⁠
⁠Hart, S. L. (1995). A natural-resource-based view of the firm. Academy of Management Review, 20(4), 986. ⁠
⁠Thomas, R., Darby, J. L., Dobrzykowski, D., & Hoek, R. (2021). Decomposing social sustainability: Signaling theory insights into supplier selection decisions. Journal of Supply Chain Management, 57(4), 117–136. ⁠
⁠Minute: 06:00⁠
⁠Thomas, R., Darby, J. L., Dobrzykowski, D., & Hoek, R. (2021). Decomposing social sustainability: Signaling theory insights into supplier selection decisions. Journal of Supply Chain Management, 57(4), 117–136. ⁠
⁠Kraljic, P. (1983). Purchasing must become supply management. Harvard Business Review, 61(5), 109–117.
⁠⁠Villena, V. H. (2019). The missing link? The strategic role of procurement in building sustainable supply networks. Production and Operations Management, 28(5), 1149–1172. ⁠
Minute: 08:00
Castka, P., Zhao, X., Bremer, P., Wood, L. C., & Mirosa, M. (2021). Supplier audits during COVID-19: A process perspective on their transformation and implications for the future. The International Journal of Logistics Management, 33(4), 1294–1314. 
Villena, V. H. (2019). The missing link? [...]
Pagell, M., & Wilhelm, M. (2025). Putting the “S” back in sustainability: How social aspects get lost in the supply chain. Journal of Supply Chain Management, 61(2), 105–123. 
Wilhelm, M. M. (2022). Extending social sustainability to suppliers: The role of GVC governance strategies and supplier country institutions. Journal of Business Ethics, 183(1), 123–146. 
Minute: 10:00
Pagell, M., & Wilhelm, M. (2025). Putting the “S” back in sustainability: How social aspects get lost in the supply chain. Journal of Supply Chain Management, 61(2), 105–123. 
Wilhelm, M. M. (2022). Extending social sustainability to suppliers: The role of GVC governance strategies and supplier country institutions. Journal of Business Ethics, 183(1), 123–146. 
Minute: 12:00 and 20:00
Teekanne. (2022). Teekanne – Responsible indulgence.
Minute: 26:00
Teekanne. (2024). TEEKANNE erhält den BME Sustainable Supply Award 2024.
⁠Minute: 30:00⁠
⁠Di Mauro, C., Peters, E., & Carnovale, S. (2024). A seat at the table: The future of purchasing and supply management. Journal of Purchasing and Supply Management, 30, 100908. ⁠
⁠Xiao,C., Wilhelm, M., van der Vaart, T., & Van Donk, D. P. (2019). Inside the buying firm: Exploring responses to paradoxical tensions in sustainable supply chain management. Journal of Supply Chain Management, 55(1), 3–20. ⁠
Villena,V. H. (2019). The missing link? The strategic role of procurement in building sustainable supply networks. Production and Operations Management, 28(5), 1149–1172.