@TECHREPORT{Ellegard2024-up, title = "Patient Choice and Socioeconomic Disparities in the Quality of Healthcare: Evidence from Swedish Registry Data", author = "Elleg\r{a}rd, Lina Maria and Kjellsson, Gustav and Kovacs, Roxanne and Zhao, Yuejun", institution = "SSRN", month = aug, year = 2024, url = {https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4942536#:~:text=We%20find%20significant%20disparities%20in,to%20select%20higher%20quality%20providers} }