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 …

The empirical growth literature has focused on capital accumulation but largely ignored productivity growth. To address … this imbalance, we propose a methodology for analyzing productivity convergence based on frontier production functions. We …

unemployment on productivity growth heavily depends on the influence of human capital in the production function. In the … traditional Solow model, unemployment has neither an influence on long-run productivity growth nor on the long-run level of … productivity. However, if human capital matters, unemployment has a long-run effect on the level of productivity. Moreover, if we …