China has huge differences among its regions in terms of socio-economic development, industrial structure, natural resource endowments, and technological advancement. These differences have created complicated linkage...China has huge differences among its regions in terms of socio-economic development, industrial structure, natural resource endowments, and technological advancement. These differences have created complicated linkages between regions in China. In this study, building upon gravity model and location quotient techniques, we develop a sector-specific model to estimate inter-provincial trade flows, which is the base for making a multi-regional input-output table. In the model, we distinguish sectors with less intra-sector input from those with larger intra-sector input, and assume that the former sectors tend to compete among regions while the latter tend to cooperate among regions. Then we apply this new method of inter-regional trade estimation to three sectors： food and tobacco, metal smelting and proc- essing, and electrical equipment. The results show that selection of bandwidth has a significant impact on the assessment of inter-regional trade. Trade flows are more scattered with the increase of bandwidths. As a result, bandwidth reflects the spatial concentration of geo- graphical activities, which should be distinguishable for different industries. We conclude that the sector-specific spatial model can increase the credibility of estimates of inter-regional trade flows.展开更多
The historical transition of timber distribution pattern in China was presented firstly with main parts of timber flows in China,which included timber markets,timber transport system and regulations of timber transpor...The historical transition of timber distribution pattern in China was presented firstly with main parts of timber flows in China,which included timber markets,timber transport system and regulations of timber transport.Based on the overview on tropical timber flows in China,the trade flows of tropical timber from production and imports of tropical timber to export of tropical timber products were analyzed by vivid illustrations.At the same time,problems in timber trade flows in China were analysed in the end.展开更多
基金National Science Foundation for Distinguished Young Scholars of China, No.41125005
文摘China has huge differences among its regions in terms of socio-economic development, industrial structure, natural resource endowments, and technological advancement. These differences have created complicated linkages between regions in China. In this study, building upon gravity model and location quotient techniques, we develop a sector-specific model to estimate inter-provincial trade flows, which is the base for making a multi-regional input-output table. In the model, we distinguish sectors with less intra-sector input from those with larger intra-sector input, and assume that the former sectors tend to compete among regions while the latter tend to cooperate among regions. Then we apply this new method of inter-regional trade estimation to three sectors： food and tobacco, metal smelting and proc- essing, and electrical equipment. The results show that selection of bandwidth has a significant impact on the assessment of inter-regional trade. Trade flows are more scattered with the increase of bandwidths. As a result, bandwidth reflects the spatial concentration of geo- graphical activities, which should be distinguishable for different industries. We conclude that the sector-specific spatial model can increase the credibility of estimates of inter-regional trade flows.
基金This paper was supported by ITTO project"Transparency in Trade Flows and Distribution of Tropical Wood Products in China"(PD171/02Rev.4).
文摘The historical transition of timber distribution pattern in China was presented firstly with main parts of timber flows in China,which included timber markets,timber transport system and regulations of timber transport.Based on the overview on tropical timber flows in China,the trade flows of tropical timber from production and imports of tropical timber to export of tropical timber products were analyzed by vivid illustrations.At the same time,problems in timber trade flows in China were analysed in the end.
