Traditional growth theory emphasizes the incentives for capital accumulation rather than technological progress; innovation is treated as an exogenous process or a by-product of investment in machinery and equipment. Grossman and Helpman develop an approach in which innovation is viewed as a deliberate outgrowth of investments in industrial research by forward looking, profit-seeking agents. They also devote attention to the place of international trade in the growth process, including the transmission of innovations from the industrial economies to the IDCs.
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