The conclusions of the 1976 Kemp-Wan proposition are shown to be substantially valid even if all tariff vectors, both pre-union and post-union, are optimally chosen.

The world is increasingly interconnected with each other in terms of goods, money, and labor (international migration). In view of the importance of international migration in recent years, the purpose of this paper is to analyze, somewhat rigorously, the economic impact of migration on sending...

In recent publications it has been argued that the change of the skill structure of industrial employment is caused by biased technical progress rather than by increasing international trade with low wage countries. However, in linking prices for final goods with prices of primary factors, most...

Although previous studies of the effect of imports on Japanese employment relied on relatively aggregate data, the variability among industries is substantial within each two-digit sector. This paper exploits recently available longitudinal data of 390 manufacturing industries and controls for...