The recognition of sustainability within a competition law regime that rests on the consumer welfare paradigm has become a key challenge for a greener economy. TRIDEA authors expound ways to reconcile sustainability with a competitive market order in antitrust analysis.

• Legal Design in Sustainable Antitrust, 15 March 2022 (together with Roman Inderst)
  http://ssrn.com/abstract=4058367
• Nachhaltigkeit und Wettbewerb: Zu einer Reform des Wettbewerbsrechts für die Erreichung von Nachhaltigkeitszielen, SAFE Policy Letter No. 94 | January 2022 (together with Roman Inderst)          
  https://safe-frankfurt.de/fileadmin/user_upload/editor_common/Policy_Center/SAFE_Policy_Letter_94.pdf
• Der Verbraucher und die Nachhaltigkeit im Kartellrecht, in: Joost/Oetker/Paschke (Hrsg.), Festschrift für Franz Jürgen Säcker zum 80. Geburtstag, 2021, S. 331-342.
• Integrating Benefits from Sustainability into the Competitive Assessment—How Can We Measure Them?, Journal of European Competition Law & Practice, 2021, https://doi.org/10.1093/jeclap/lpab077 (with Roman Inderst).
• Measuring Consumer Sustainability Benefits (together with mit Roman Inderst) https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3916070
• The Scope and Limitations of Incorporating Externalities in Competition Analysis within a Consumer Welfare Approach (together with Roman Inderst)
  https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3896243
• Sustainability Agreements and Social Norms (together with Roman Inderst & Felix Rhiel) https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3887314
• Roman Inderst & Stefan Thomas, Reflective Willingness to Pay: Preferences for Sustainable Consumption in a Consumer Welfare Analysis, Journal of Competition Law & Economics, nhab016, https://doi.org/10.1093/joclec/nhab016 (20 August 2021), https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3755806
• Roman Inderst & Stefan Thomas, Prospective Welfare Analysis—Extending Willingness-To-Pay Assessment to Embrace Sustainability, Journal of Competition Law & Economics, nhab021, https://doi.org/10.1093/joclec/nhab021 (22 September 2021), https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3699693
• Stefan Thomas, Normative Goals in Merger Control, in: Ioannis Kokkoris: Competition enforcement: Is there a final frontier? (forthcoming), preprint: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3513098
• Stefan Thomas, Normative Goals in Merger Control (11 February 2020), Oxford Business Law Blog
  https://www.law.ox.ac.uk/business-law-blog/blog/2020/02/normative-goals-merger-control