China's domestic production networks
利用增值税发票和人口普查数据，构建2002和2012年省际投入产出表，研究中国国内生产网络的变化，发现省际中间品贸易增加、生产碎片化、国内附加值提升，以及沿海与内陆省份的功能分工。
This paper examines China's domestic production networks. It uses VAT invoices to build inter-provincial input-output tables for 2002 and 2012. These are combined with population censuses to determine the location of workers involved in production. We document i) increased trade in intermediate inputs between provinces; ii) inter-provincial production fragmentation that differs by product; iii) substitution of domestic for foreign intermediates, resulting in increased domestic value added in exports. Information about the occupations of workers suggest that iv) richer coastal areas such as Beijing, Tianjin, and Shanghai specialize in R&D and marketing activities, whereas v) inland provinces specialize in production activities.