1 Health Economics & Management, Institute of Economic Research, Lund University, Box 117, 22100, Sweden; Health Economics Unit, Department of Clinical Sciences, Medicon Village, Lund University, Lund, Sweden. Electronic address: Gawain.heckley@med.lu.se.
2 Health Economics & Management, Institute of Economic Research, Lund University, Box 117, 22100, Sweden; Health Economics Unit, Department of Clinical Sciences, Medicon Village, Lund University, Lund, Sweden; Department of Economics, Lund University, Lund, Sweden.
3 Department of Economics, University of Gothenburg, Gothenburg, Sweden; Centre of Health Economics at Gothenburg University (CHEGU), Gothenburg, Sweden.