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‘Natural’ Trading Blocs: A Closer Look
( Volker Nitsch ) 세종대학교 경제통합연구소 (구 세종대학교 국제경제연구소) 1997 Journal of Economic Integration Vol.12 No.4
It is occasionally argued that the formation of trading blocs between geographically proximate countries should be encouraged because positive welfare effects are more likely to outweigh negative welfare effects. This paper presents a simple differentiated products model that allows to test whether the formation of a ‘natural’ trading bloc, first, is indeed increasing world welfare and, second, is welfare-superior to the formation of an ‘unnatural’ trading bloc. Simulations show that, while the removal of trade barriers always improves world welfare, ‘unnatural’ bloc formation may, under some conditions, be welfare-superior to the formation of trading blocs along ‘natural’ lines. The concept of ‘natural’ trading blocs is therefore a misguided prescription. (JEL Classification: F15)
Trade Openness and Urban Concentration: New Evidence
( Volker Nitsch ) 세종대학교 경제통합연구소 (구 세종대학교 국제경제연구소) 2006 Journal of Economic Integration Vol.21 No.2
In this paper, I reexamine the empirical relationship between trade openness and urban concentration. Using a panel data set of more than 110 countries for the period from 1970 through 2000, I find that previous results of a negative association between trade openness and the size of a country`s largest city are not robust. More importantly, the openness-concentration link disappears completely, once reverse causality and the endogeneity of trade are accounted for. There is no evidence that trade liberalization significantly reduces urban concentration. Similarly, openness is insignificant if trade is instrumented by geographic characteristics.
'Natural' trading Blocs : A Closer Look
Nitsch, Volker 세종대학교 국제경제연구소 1997 Journal of Economic Integration Vol.12 No.4
It is occasionally argued that the formation of trading blocs between geographically proximate countries should be encouraged because positive welfare effects are more likely to outweigh negative welfare effects. This paper presents a simple differentiated products model that allows to test whether the formation of a 'natural' trading bloc, first, is indeed increasing world welfare and, second, is welfare-superior to the formation of an 'unnatural' trading bloc. Simulations show that, while the removal of trade barriers always improves world welfare, 'unnatural' bloc formation may, under some conditions, be welfare-superior to the formation of trading blocs along 'natural' lines. The concept of 'natural' trading blocs is therefore a misguided prescription. (JEL Classification: F15)