In this paper we focus on the post Bretton Woods period and analyze whether a PPP relationship is accepted by the data for Italy, United States and Germany. We adopt a multivariate system approach in which, initially, we test for cointegration and then we try to identify a cointegration space...

It is customary in the empirical trade literature to analyze specialization patterns of countries using Revealed Comparative Advantage (RCA) measures. This paper explores the pros and cons of the most commonly used RCA index: the Balassa (1965) Index of RCA. After describing the properties of...