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Does globalization lead to specialization

The relationship between market integration and the degree of specialization plays a key role in many areas of economics. In contrast to previous studies, we illustrate that globalization does not necessarily lead to specialization. The analysis is conducted in an extended Dixit-Stiglitz- Ethier framework. Whether globalization leads to specialization or to more integrated production structures depends on characteristics of the cost function and on firm behavior. By comparing these changes to the optimal degree of specialization we show that globalization can reduce the efficiency of the industrial structure.