The authors examine the relative importance of the growth of physical and human capital and the growth of total factor …

Large and sustained differences in marginal products of capital (MPKs) across countries are sharply at odds with the … substantially affected by adjustment costs in the accumulation of capital. With the proper technology and a plausible … parameterization of adjustment costs, the MPK in poor countries is much higher than the MPK in rich countries. Why capital flows do not …