A country's growth of output is identically equal to its ratio of investment to output and the productivity of … productivity of investment differs between countries. This paper converts a "new" growth theory regression equation into … productivity of investment equation which allows for the direct testing of the diminishing returns to capital hypothesis of …

investment in knowledge, and its productivity, looking at sectoral peculiarities which may emerge; to this end, we use a large … positive impact on a firm's productivity, with an overall elasticity of about 0.10; this general result is largely consistent … ahead in terms of the impact on productivity of their R&D investments; moreover, a shift in favour of the service sectors …

investment in knowledge, and its productivity, looking at sectoral peculiarities which may emerge; to this end, we use a large … positive impact on a firm's productivity, with an overall elasticity of about 0.10; this general result is largely consistent … ahead in terms of the impact on productivity of their R&D investments; moreover, a shift in favour of the service sectors …