英文文献：Revealed Comparative Advantage and the Alternatives as Measures of International Specialisation-显性比较优势和作为国际专业化衡量的替代品
英文文献作者：Keld Laursen
英文文献摘要：
The paper is an analysis of Balassa’s ‘revealed comparative advantage’ (RCA). The papers shows that when using the RCA, it should always be adjusted in such a way, so that it becomes symmetric. The conclusion is based on a theoretical discussion of the properties of the measure, but also on convincing empirical evidence, based on the Jarque-Bera test of normality of the error terms from regressions, using both the RCA and the ‘Revealed Symmetric Comparative Advantage’ (the RSCA). The RSCA is also compared to other measures of international trade specialisation. These measures included the Michaely index and the chi square measure. The conclusion emerging from the analysis is that the RSCA is - on balance - the best measure of comparative

本文对巴拉萨的“显性比较优势”(RCA)进行了分析。论文表明，当使用RCA时，它应该总是调整这样一种方式，使它成为对称。结论是基于对测度的性质的理论讨论，但也基于令人信服的经验证据，基于Jarque-Bera检验的误差项的正态性从回归，使用RCA和“显示对称比较优势”(RSCA)。RSCA还与国际贸易专业化的其他措施进行了比较。这些指标包括迈克尔指数和卡方测度。分析得出的结论是，总的说来，RSCA是最好的衡量比较性的标准