A country's growth of output is identically equal to its ratio of investment to output and the productivity of investment. In "new" growth theory regressions, which include the investment ratio, all other included variables pick up why the productivity of investment differs between countries....

The purpose of this paper is to explain differences in the productivity of capital across countries taking 84 rich and poor countries over the period 1980-2011, and to test the orthodox neoclassical assumption of diminishing returns to capital. The marginal product of capital is measured as the...

This paper proposes two types of AK-style endogenous growth models to test the physical capital accumulation hypothesis in a ‘typical’ developing country with multiple regimes: a strong version, in which technological progress is fully endogenous to capital accumulation, and a weaker...

This paper re-examines the role of physical capital accumulation in the Indian economy over the period 1953-2010. As an alternative to the orthodox total factor productivity (TFP) view, the paper develops a combined TFP-capital accumulation hypothesis of growth transitions. The results show that...

This paper develops a saving/investment causality hypothesis to distinguish between demand- and supply-led growth transitions. The empirical application shows that India's growth transition in 1980 entailed a shift out of a suboptimal demand regime (1953-78) into an optimal demand regime...

This paper formalises the balance-of-payments-constrained (BPC) growth model in a two-regime framework to re-examine India's growth transition in 1980 from a demand-side perspective, as an alternative to the 'supply-oriented' approaches of previous studies. The results provide strong evidence of...