The strategic factor is that the investment level should be above 5% of the national income. This rise in investment rate depends on many sectors of the economy. According to Rostow capital formation depends on the productivity of agriculture and the creation of social overhead capital. Agriculture plays a very important role in this transition process as the surplus quantity of the product is to be utilized to support an increasingly urban population of workers and also becomes a major exporting sector, earning foreign exchange for continued development and capital formation. Increases in agricultural productivity also lead to the expansion of the domestic markets for manufactured goods and processed commodities, which adds to the growth of investment in the industrial sector.