“…In these studies, macroeconomic and institutional factors, trade openness and policies that enhance the quality of human and capital stock are commonly found to play an important role in raising productivity growth (Barro, 2001;European Commission, 2014). For instance, a number of studies find that a skilled workforce tend to promote innovation, which, in turn, raises productivity (Sondermann, 2012). Similarly, investment in information and communication technology (ICT) and on R&D is commonly found to play a crucial role in explaining productivity performance (Griffith et al, 2004).…”