“…While labour force participation usually decreases with age (Bloom et al, 2015;Lee and Mason, 2011), and thus ageing of the working age population has a negative impact on total labour force participation, the effect on productivity is more complex. Some researchers find evidence in support of the human capital theory, showing a positive effect of labor force ageing on GDP through the growth in productivity (de la Croix and Monfort, 2000;Futagami and Nakajima, 2001;Gómez and De Cos, 2008;Malmberg, 1999, 2009;Rauhut, 2012). Other researchers show a negative effect (Bloom and Williamson, 1998;Bloom et al, 2010;Crespo Cuaresma et al, 2016;Teixeira et al, 2016).…”