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handle: 10071/11605
O Modelo Gravitacional tem sido extensivamente utilizado na investigação do comércio internacional nas últimas cinco décadas devido ao seu alto poder explicativo da realidade comercial. Desde que começou a ser aplicado na teoria económica nos anos sessenta, a equação gravitacional tem sido utilizada para avaliar as implicações da política comercial e os efeitos dos Acordos de Livre Comércio, entre outros aspetos. Nesse sentido, são analisadas algumas das barreiras comerciais que podem funcionar como entraves as comércio internacional, nomeadamente a política comercial imposta pela Organização Mundial do Comércio, pelos governos de cada país ou pela situação económica. O objetivo deste trabalho é rever a literatura empírica desde 1962 relacionada com a evolução e desenvolvimento do Modelo Gravitacional e com os fluxos comerciais de mercadorias, realçando os efeitos das variáveis do modelo no comércio internacional.
The Gravity Model has been extensively used in the investigation in international trade research for the last five decades due to its high explanatory power of commercial reality. Since it began to be applied in economic theory in the sixties, the gravity equation has been used to assess the implications of trade policy and the effects of free trade agreements, among other things. In this sense, we discuss some of the trade barriers that can act as the international trade barriers, including trade policy imposed by the World Trade Organization by the governments of each country or the economic situation. The objective of this paper is to review the empirical literature since 1962 related to the evolution and development of the Gravity Model and trade flows of goods, highlighting the effects of model variables in international trade.
Barreiras comerciais, Domínio/Área Científica::Ciências Sociais::Economia e Gestão, Gravity model, Trade flows, Trocas comerciais -- Commercial exchanges, Trade barriers, Trocas comerciais, Modelos econométricos
Barreiras comerciais, Domínio/Área Científica::Ciências Sociais::Economia e Gestão, Gravity model, Trade flows, Trocas comerciais -- Commercial exchanges, Trade barriers, Trocas comerciais, Modelos econométricos
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