产品替代性与生产率分布——基于中国制造业企业数据的实证
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| Title | Product Substitutability and Productivity Distribution——Evidence from Chinese Manufacturing Industry
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| 作者 | 孙浦阳 蒋为 张龑 |
| Author | Sun Puyang, Jiang Wei and Zhang Yan |
| 作者单位 | 南开大学经济学院国际经济与贸易系 |
| Organization | Nankai University; School of Economics |
| 作者Email | puyangsun@nankai.edu.cn；weijiang923@mail.nankai.edu.cn；nkzhangyan@126.com |
| 中文关键词 | 产品替代性 生产率分散化 生产率水平 资源错配 |
| Key Words | Product Substitutability; Productivity Dispersion; Productivity Level; Misallocation |
| 内容提要 | 本文从产品市场的需求角度提出产品替代性影响企业生产率分布的理论模型与假说，利用1998至2007年中国制造业企业数据，刻画了我国工业行业生产率分散程度，检验了产品替代性对企业生产率离散程度的影响。研究结果发现产品替代性会显著影响行业生产率分布与水平，产品替代性降低将会导致生产率离散化程度扩大与生产率水平降低，从而加剧了资源错配。这一结果在使用不同产品替代性指标，以及不同生产率和离散程度指标后均保持稳健，同时本文在考虑企业沉没成本、市场化水平、以及所有制环境等因素后结论仍然是稳健的。 |
| Abstract | Product Substitutability might be important to affect productivity dispersion. Reducing productivity dispersion can improve firms’ average productivity and make industries’ efficient factor allocation come true. We propose a theory model and assumption of the effect about product substitutability on industry productivity dispersion on demand-side conditions. Upon Chinese manufacture firm-level panel data, we calculate more than 400 industries productivity dispersion to test the link between product substitutability and productivity dispersion. The result illustrates that intra-industry product substitutability exerts an appreciable impact on intra-industry resource allocation: Less substitutability can lead to productivity dispersion’s expansion and average industry productivity’s decrease, which can result in the deficiency of intra-industry resource allocation. On the contrary, high-substitutability industry should exhibit less productivity dispersion and higher average productivity levels, which can promote the efficiency of factor allocation. This result is always robust when we use three different indexes respectively on product substitutability and productivity dispersion, even after adding the control variables into the model such as sunk cost, marketization level, ownership and so on. |
| 文章编号 | WP507 |
| 登载时间 | 2013-08-01 |
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