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This chapter discusses advances in international trade theory and gravity modeling with an explanation of the reasons behind gains from trade. The changing pattern of trade over time has also changed the explanation of the emergence of gains from trade, which provides room for new trade theories. Initial theories of trade, known as traditional trade theories, explain the pattern of trade in terms of comparative advantage. But with the passage of time, the emergence of trade in intermediates and services has provided new reasons for trade and hence has led to the advent of new trade theories. This chapter will explain the different reasons behind international trade. |
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