关键词: 贸易自由化 , 增加值贸易 , WTO , 引力模型

Abstract: Rapid growth in crossborder intermediate goods trade has made the traditional statistics on gross volume seriously mismeasuring a countrys gains from trade in the global value chainThis study assess the effect of WTO on Chinas exports with new data on trade in value added and compare how trade liberalization affects Chinas gross exports and value added exports differentlyUsing a properly specified gravity model,we obtain more reliable estimation of accession effectsFirst,Chinas access to the WTO has promoted its aggregate exports,but the gross bilateral trade statistics overstate the WTO tradepromoting effectsSecond,the effects of the WTO on Chinas exports vary across sectors,which are strong and positive for nonmanufacturing,manufacturing and services,but strong and negative for agriculture,forestry,and fishingFinally,at the sector level,manufacturing is the only one in which the gross trade statistics overstate the impact of WTO membership,while,for other three are underestimated

Key words: trade liberalization , valueadded trade , WTO , gravity model