@unpublished{WiertzWaltherZoettl, author = {Wiertz, Ann-Kathrin and Walther, Andrea and Z{\"o}ttl, Gregor}, title = {Strategic Retailers in the Energy Sector}, url = {https://opus4.kobv.de/opus4-trr154/561}, language = {en}, type = {Preprint}, institution = {TRR 154} } @unpublished{GrimmGruebelSchmidtetal.2023, author = {Grimm, Veronika and Gr{\"u}bel, Julia and Schmidt, Martin and Schwartz, Alexandra and Wiertz, Ann-Kathrin and Z{\"o}ttl, Gregor}, title = {On a Tractable Single-Level Reformulation of a Multilevel Model of the European Entry-Exit Gas Market with Market Power}, url = {https://opus4.kobv.de/opus4-trr154/527}, pages = {31}, year = {2023}, language = {en}, type = {Preprint}, institution = {TRR 154} } @techreport{OggioniSchwartzZoettletal.2022, type = {Working Paper}, author = {Oggioni, Giorgia and Schwartz, Alexandra and Z{\"o}ttl, Gregor and Wiertz, Ann-Kathrin}, title = {Dynamic Pricing and Strategic Retailers in the Energy Sector: A Multi-Leader-Follower Approach}, url = {https://opus4.kobv.de/opus4-trr154/455}, pages = {41}, year = {2022}, language = {en}, type = {Preprint}, institution = {TRR 154} }