Other studies that endogenize the population such that the population growth rate continually depends on per capita consumption and thus reformulate the Solow model show that there is stability. In, we review Solow's treatment of increasing returns. on a large scale as a possible source of growth above the natural rate, and the associated consequences. Swan's proposal 7 about the. The Solow model believes that a sustained increase in capital investment only increases the growth rate temporarily: because the capital/labor ratio increases. However, the marginal product of additional units of capital may decline under diminishing returns and the economy therefore returns to a long-run growth path. In this article, we test whether the growth experience of a sample of OECD countries over the last three decades is more consistent with Solow's exogenous growth model, augmented by human capital, or with an endogenous growth model, in the style of Uzawa-Lucas, with constant returns to scale for “large” human and physical capital. Nobel laureate Robert Solow created the Solow Model in art. It is a massive contribution to neoclassical economic thought and the basis of modern theories of economic growth. He is the pioneer of neoclassical growth methods. Neoclassical economics uses the theory of supply and demand to explain prices, production and. We introduce a discrete growth model following the equation and determine various critical exponents related to the depinning transition. We find the roughness exponent α ≈ 1.25, the growth exponent β. Other studies that endogenize the population such that the population growth rate continually depends on per capita consumption and thus reformulate the Solow model show that there is stability. The Solow model, poverty traps and foreign affairs. the “surprising” result is that investment is not the key to long-term growth, although it plays a role in the transition to steady state.