About the Authors

Josep Darbà

Roles Conceptualization, Project administration, Supervision, Validation, Writing – review & editing

darba@ub.edu

Affiliation Department of Economics, Universitat de Barcelona, Barcelona, Spain

Alicia Marsà

Roles Formal analysis, Investigation, Methodology, Software, Writing – original draft

Affiliation Department of Health Economics, BCN Health Economics & Outcomes Research S.L., Barcelona, Spain

Competing Interests

The authors declare no competing interests. AM employment at BCN Health does not alter our adherence to PLOS ONE policies on sharing data and materials.