An increase in saving and investment raises the capital stock and thus raises the full-employment national income and product. Figure: Determination of the steady-state capital-labor ratio in the Solow model without population growth and technological change.Daron Acemoglu (MIT). Here, we will discuss the capital stock and output conduct in the Solow Growth model, if investment is less than depreciation. Output and capital per worker grow at the same constant, positive rate in BGP of model. In long run model reaches BGP. 2. The Solow model predicts that this economy should experience steady increases in output per worker and increases in the capital stock. A new methodology is chosen to deal with this problem.