The purpose of this paper is to present the major contributions of Paul Krugman to economic theory. It shows the contribution and influence that articles of 1979 and 1991 have exerted on the renewal of trade theory and the emergence of new economic geography. In these articles, Krugman...

This paper measures and compares the Intraindustry Trade (IIT) levels between Colombia and its main economic regions with the Andean Community (AC). It finds that this trade has been overestimated in previous studies due to geographical and aggregation biases. The nature of IIT is predominantly...