This paper starts by examining the historical background and formative influences of ISI, then goes on to compare and contrast the structuralist rationales for ISI and neoclassical rationales against it. The conclusion I reached is that the fundamental rationales behind ISI-- the infant industry argument, external economies and linkages effects--remain intellectually valid. The issue of terms of trade has important relevance to development economics but should be studied in a different context.
The general conclusion of this paper is that import substitution as an industrialization strategy remains viable and may be of great importance or less developed countries that want to catch up economically with industrialized countries.