Promoting regional growth and innovation: relatedness, revealed comparative advantage and the product space
将产品空间方法应用于意大利省份，构建了产品空间位置指数，发现出口网络中的位置越好，地方经济表现越好。
We adapt the product-space approach of Hausmann-Hidalgo et al. to the case of Italian provinces, examining the extent to which network connectedness and centrality of a province's exports is related to its economic performance. We construct a new Product Space Position (PSP) index which retains many of the Hausmann-Hidalgo et al. features but which is also much better suited to handling regional and provincial data. The PSP index is found to outperform other indices. Our comparison throws light on fundamental aspects of network-cognitive-distance-trade arguments. A better positioning in the export-network product space is indeed associated with better local economic outcomes.