In Harrod (1939)-Domer (1946) and Solow’s Growth model, the emphasis is on increasing savings and investments and that is supposed to lead to increased productivity corresponding to lower Incremental capital output (ICOR) ratio in Harrod (1939)-Domer (1946) model and hence higher rate of growth and to higher steady state level of output in Solow’s Growth model. Savings that result in investments contribute to growth. Essentially, what leads to growth is investment. Savings are only the source of investment funds.