{"abstract":[{"text":"In the framework of spatial competition, two or more players strategically choose a locationin order to attract consumers. It is assumed standardly that consumers with the same favorite location fully agree on the ranking of all possible locations. To investigate the necessity of this questionable and restrictive assumption, we model heterogeneity in consumers’ distance perceptions by individual edge lengths of a given graph. A profile of location choices is called a “robust equilibrium” if it is a Nash equilibrium in several games which differ only by the consumers’ perceptions of distances. For a finite number of players and any distribution of consumers, we provide a full characterization of all robust equilibria and derive structural conditions for their existence. Furthermore, we discuss whether the classical observations of minimal differentiation and inefficiency are robust phenomena. Thereby, we find strong support for an old conjecture that in equilibrium firms form local clusters.","lang":"eng"}],"doi":"10.1016/j.ejor.2014.07.019","date_created":"2017-10-17T12:42:28Z","date_updated":"2022-01-06T07:01:29Z","issue":"2","citation":{"mla":"Buechel, Berno, and Nils Röhl. “Robust Equilibria in Location Games.” <i>European Journal of Operational Research</i>, vol. 240, no. 2, Elsevier, 2015, pp. 505–17, doi:<a href=\"https://doi.org/10.1016/j.ejor.2014.07.019\">10.1016/j.ejor.2014.07.019</a>.","apa":"Buechel, B., &#38; Röhl, N. (2015). Robust Equilibria in Location Games. <i>European Journal of Operational Research</i>, <i>240</i>(2), 505–517. <a href=\"https://doi.org/10.1016/j.ejor.2014.07.019\">https://doi.org/10.1016/j.ejor.2014.07.019</a>","bibtex":"@article{Buechel_Röhl_2015, title={Robust Equilibria in Location Games}, volume={240}, DOI={<a href=\"https://doi.org/10.1016/j.ejor.2014.07.019\">10.1016/j.ejor.2014.07.019</a>}, number={2}, journal={European Journal of Operational Research}, publisher={Elsevier}, author={Buechel, Berno and Röhl, Nils}, year={2015}, pages={505–517} }","ieee":"B. Buechel and N. Röhl, “Robust Equilibria in Location Games,” <i>European Journal of Operational Research</i>, vol. 240, no. 2, pp. 505–517, 2015.","chicago":"Buechel, Berno, and Nils Röhl. “Robust Equilibria in Location Games.” <i>European Journal of Operational Research</i> 240, no. 2 (2015): 505–17. <a href=\"https://doi.org/10.1016/j.ejor.2014.07.019\">https://doi.org/10.1016/j.ejor.2014.07.019</a>.","ama":"Buechel B, Röhl N. Robust Equilibria in Location Games. <i>European Journal of Operational Research</i>. 2015;240(2):505-517. doi:<a href=\"https://doi.org/10.1016/j.ejor.2014.07.019\">10.1016/j.ejor.2014.07.019</a>","short":"B. Buechel, N. Röhl, European Journal of Operational Research 240 (2015) 505–517."},"has_accepted_license":"1","_id":"491","publication":"European Journal of Operational Research","language":[{"iso":"eng"}],"author":[{"first_name":"Berno","last_name":"Buechel","full_name":"Buechel, Berno"},{"full_name":"Röhl, Nils","last_name":"Röhl","first_name":"Nils"}],"title":"Robust Equilibria in Location Games","intvolume":"       240","ddc":["040"],"user_id":"1112","page":"505-517","type":"journal_article","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Subprojekt A3","_id":"7"},{"_id":"2","name":"SFB 901 - Project Area A"}],"status":"public","publisher":"Elsevier","volume":240,"year":"2015","file":[{"content_type":"application/pdf","file_size":389892,"access_level":"closed","creator":"florida","file_name":"491-WP58.pdf","date_updated":"2018-03-15T13:44:15Z","success":1,"relation":"main_file","date_created":"2018-03-15T13:44:15Z","file_id":"1316"}],"department":[{"_id":"205"},{"_id":"475"}],"file_date_updated":"2018-03-15T13:44:15Z"}