“…Besides income, population structure and medical/technological progress, other factors are considered in the literature to explain health care expenditure: percentage of urban population (Leu, 1986;Gerdtham et al, 1992;Wang, 2009;Hosoya, 2014), female labor force participation (Gerdtham et al, 1992;Christiansen et al, 2006;Hosoya, 2014), health care systems characteristics (Gerdtham et al, 1992;Hitiris and Posnett, 1992;Barros, 1998;Christiansen et al, 2006;Mosca, 2007;Wang, 2009;Baltagi and Moscone, 2010;Hosoya, 2014) and health care supply (Gerdtham et al, 1992;Christiansen et al, 2006;Mosca, 2007;Wang, 2009;Magazzino and Mele, 2012;Hosoya, 2014).…”