(1) Steady growth begins. Explanation: Rostow's 'Stages of Economic Growth' (1960) presented five stages through which all countries must pass to become developed: 1) traditional society, 2) preconditions to take-off, 3) take-off, 4) drive to maturity, and 5) age of high mass consumption. Take-off is the short period of intensive growth, in which industrialization begins to occur, and workers and institutions become concentrated around a new industry.