This is the 'traditional society'. Here, possibly because of outside stimuli, investment rises, the infrastructure begins to be developed, and there is growth in the agricultural and industrial sectors. It is upon these bases that the next stage, 'take-off' occurs. This is a short period of time during which the economy and society are transformed. Investments and savings rise, and new industries grow in the primary and the manufacturing sectors.
Growth gives rise to the 'drive to maturity'.
Industrial development now diversifies, imports fall, and investment is still high. The Rostow model assumes that capitalism is the underlying structure of the society, and it does not seek to explain the sequence of changes. In addition, the terminology is somewhat vague. A Dictionary of Geography 2. A Dictionary of Geography 3.