Theoretical analysis based on models of growth and trade with heterogeneous firms

基于异质企业增长和贸易模型的理论分析

• 批准号: 20530155
• 负责人: HARUYAMA Tetsugen
• 金额: $ 2.5万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20530155/
• 关键词: 国際貿易; 異質企業; 経済成長; 技術進歩; 貿易自由化

(1) A new model of international trade and economic growth with heterogeneous firms was built (2) An ex ante distribution of firm productivity is endogenized. This contrasts with the existing studies where the ex-ante distribution is treated exogenously. (3) Trade liberalization expands the exporting industries and shrinks the non-exporting industries. Although this result is reported in the literature, it is important to establish that the same result holds in a quality-ladder model. (4) Trade liberalization unambiguously promotes technical progress and consumption growth. (5) Social welfare increases due to trade liberalization if the size of the market is sufficiently large or the rate of time preference of the representative consumer is sufficiently small. (6) R&D subsidies do not necessarily expand the exporting industries. Similarly, the industrial policy does not necessarily promote technical progress. (7) The above basic results hold in the model without "scale effects" in the presence of population growth. (8) This research project led to other areas of research.

(1)建立了一个新的异质性企业国际贸易与经济增长模型。（2）企业生产率的事前分布是内生的。这与现有的研究中，事前分布外生治疗。(3)贸易自由化扩大了出口产业，缩小了非出口产业。虽然这一结果在文献中有报道，但重要的是要确定同样的结果在质量阶梯模型中成立。(4)贸易自由化无疑会促进技术进步和消费增长。(5)如果市场规模足够大，或者代表性消费者的时间偏好率足够小，则贸易自由化会增加社会福利。(6)研发补贴并不一定扩大出口产业。同样，产业政策也不一定促进技术进步。(7)上述基本结果在没有“尺度效应”的人口增长模型中也成立。(8)这个研究项目带动了其他领域的研究。

项目成果

Patents, Industrial Policies, and the Distribution of R&D Firms

专利、产业政策和R的分配

• 发表时间: 2010
• 作者: Tetsugen Haruyama;Laixun Zhao;Tetsugen Haruyama;Tetsugen Haruyama;Tetsugen Haruyama
• 通讯作者: Tetsugen Haruyama

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日本経済学会

日本经济协会

• 发表时间: 2012
• 作者: Sugawara;Kazuyoshi;和田肇;和田肇;唐津博;唐津博;唐津博;根本到;根本到;根本到;藤井康博;柄谷利恵子;伊藤隆敏
• 通讯作者: 伊藤隆敏

R & D Policy in a Volatile Economy

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• 发表时间: 2009
• 期刊: Journal of Economic Dynamics and Control vol.33, issue10
• 作者: Tetsugen Haruyama;Campbell Leith;Tetsugen Haruyama
• 通讯作者: Tetsugen Haruyama

*Competitive Innovation with Codified and Tacit Knowledge

*通过编码和隐性知识进行竞争创新

• DOI: 10.1111/j.1467-9485.2009.00491.x
• 发表时间: 2008
• 期刊: Wiley-Blackwell: Scottish Journal of Political Economy
• 作者: Tetsugen Haruyama