进口、产品差异化与企业生产率 阅读全文
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Title | Imports, Heterogeneous Products and Firm Productivity
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作者 | 余淼杰 李晋 |
Author | Miaojie Yu and Jin Li |
作者单位 | 北京大学国家发展研究院中国经济研究中心 |
Organization | National School of Development |
作者Email | mjyu@ccer.edu.cn,lijin87@163.com |
中文关键词 | 中间产品进口 最终产品进口 同质性产品 异质性产品 企业生产率 |
Key Words | Intermediate Product Import; Final Product Import; Homogenous Commodity; Heterogeneous Commodity; Firm Productivity |
内容提要 | 本文基于中国2000-2006年大规模以上企业工业数据库和中国海关总署关税数据,结合Rauch(1999)产品差异化分类,深入研究差异化行业中,中间产品进口和最终产品进口对于企业生产率水平的影响。本文首先考察了进口对于企业生产率的影响效果,研究发现,最终产品的进口和中间产品的进口均显著地促进了企业生产率的提高。考虑到内生性问题,在选取行业关税和企业投入品关税指数作为工具变量后,上述结论仍然稳健。进一步,考虑到行业差异化问题,数据结果显示同质性较强的行业的产品进口,相比于异质性较强的行业,对于企业生产率的提升有更大的效果。同质性产品的生产企业中间投入品的进口比异质性较强的企业更有利于企业生产率水平的提升。 |
Abstract | Our paper uses industry dataset of firm level during the period from 2000 to 2006 and Customs’ tariff data. Following Rauch(1999) on heterogeneous products, this paper focuses on the effect of final product import and intermediate product import on the productivity of firms. First the relationship between the import and firm productivity is tested, and results show that the final product import and intermediate product import improve the firm productivity. Considering the endogenous problem, the results still remain robust by choosing industry level tariff and firm input tariff index as the instrument. What is more, taking heterogeneous industries into account, results present that product import gives higher improvement to the firm productivity in the homogenous industries than in heterogeneous industries. Also, intermediate input import gives more rises to the level of firm productivity, especially for the firms produce homogeneous commodities. |
文章编号 | WP406 |
登载时间 | 2013-02-01 |
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