国际贸易问题
國際貿易問題
국제무역문제
Journal of International Trade
2014年
3期
3~12
,共null页
垂直专业化 集约边际 扩展边际 国际经济波动
垂直專業化 集約邊際 擴展邊際 國際經濟波動
수직전업화 집약변제 확전변제 국제경제파동
Vertical specialization; Intensive margins; Extensive margins; Inter-national economic shocks
“垂直专业化”(Vertical Specialization,VS)是各国经济彼此联系的重要渠道之一。我们在Hummels等(2001)与Hummels和Klenow (2005)的工作基础上,提出了一个新的分解框架:将VS的波动分解为集约边际变动、扩展边际变动、国际因素等四个因素,并利用该方法分解了中国1995-2010年VS的变动。结果表明:(1)中国VS的增长主要是通过已有产品出口数量的扩张达到的,集约边际变动对VS变动(均值)贡献达到了74.026%,而扩展边际的贡献相当小。(2)国际因素是中国VS扩张中的重要因素,其对中国VS变动(均值)贡献为25.95%。(3)两类产业的VS受国际冲击最为强烈,一类是国际纵向分工网络发达,中国VS参与程度较深的产业;另一类是中国因资源禀赋或技术能力而严重依赖进口的行业。
“垂直專業化”(Vertical Specialization,VS)是各國經濟彼此聯繫的重要渠道之一。我們在Hummels等(2001)與Hummels和Klenow (2005)的工作基礎上,提齣瞭一箇新的分解框架:將VS的波動分解為集約邊際變動、擴展邊際變動、國際因素等四箇因素,併利用該方法分解瞭中國1995-2010年VS的變動。結果錶明:(1)中國VS的增長主要是通過已有產品齣口數量的擴張達到的,集約邊際變動對VS變動(均值)貢獻達到瞭74.026%,而擴展邊際的貢獻相噹小。(2)國際因素是中國VS擴張中的重要因素,其對中國VS變動(均值)貢獻為25.95%。(3)兩類產業的VS受國際遲擊最為彊烈,一類是國際縱嚮分工網絡髮達,中國VS參與程度較深的產業;另一類是中國因資源稟賦或技術能力而嚴重依賴進口的行業。
“수직전업화”(Vertical Specialization,VS)시각국경제피차련계적중요거도지일。아문재Hummels등(2001)여Hummels화Klenow (2005)적공작기출상,제출료일개신적분해광가:장VS적파동분해위집약변제변동、확전변제변동、국제인소등사개인소,병이용해방법분해료중국1995-2010년VS적변동。결과표명:(1)중국VS적증장주요시통과이유산품출구수량적확장체도적,집약변제변동대VS변동(균치)공헌체도료74.026%,이확전변제적공헌상당소。(2)국제인소시중국VS확장중적중요인소,기대중국VS변동(균치)공헌위25.95%。(3)량류산업적VS수국제충격최위강렬,일류시국제종향분공망락발체,중국VS삼여정도교심적산업;령일류시중국인자원품부혹기술능력이엄중의뢰진구적행업。
Vertical Specialization has become one of the most important eco- nomic interaction channels between countries. Following Hummels and Klenow (2005) and Hummels et al. (2001), this paper decomposes China's vertical spe- cialization (VS) fluctuation into four contributing factors, including intensive mar- gins, extensive margins and international factors etc. By applying this methodolo- gy on China's trade, our study finds that: (1) Growth of VS in China is mainly achieved through the expansion of trading volumes of existing products; 74.026% of the change of VS is caused by intensive margins on average. (2) The interna- tional economic shock is another significant contribution to the expansion of VS, contributing to 25.95% of its change on average. (3) The VS of two types of in- dustries are mostly affected by international economic shocks. The first type is those industries that have been deeply involved in the well-developed internation- al vertical linkages; the other is the industries that rely heavily on imports be- cause of limited resource endowment or technical capability.