关键词: 产品内分工 , 要素价格扭曲 , 集约边际 , 扩展边际

Abstract: For more than three decades when China had carried out externaloriented development strategy，factor price distortions have represented one of most distinctive featuresThis paper，puts its analysis in the perspective of dual margins and intraproduct specification，explores what influence can be done by factor price distortions and the position in intraproduct specification to Chinese exporters，both respectively as well as jointlyThe results indicate that in Chinas factor markets there exist serious negative price distortions，by which exporters extensive margin was restrained while their intensive margin was stimulatedHowever，by escalating the positions in intraproduct specifications，and by its interaction with factor price distortions，one can stimulate the extensive margin significantly，while no significant influence can be found on the intensive marginThus the externaloriented development strategy can still benefit China，as long as China discards factor price distortions and replaces them with favorable positions in intraproduct specifications

Key words: intraproduct specification , factor price distortion , intensive margin , extensive margin