Many empirical studies have found a positive relationship between openness and growth in per capita GDP in less developed countries, and economists have produced many explanations for this correlation. However, the existing studies are consistent with all of these theories and thus do not...

The commonly observed positive relationship between openness and growth is consistent with many theories of economic growth and thus does not provide direct evidence in support of any one of them. Quah and Rauch (1990), however, imply that increased specialization accelerates productivity growth...