International Knowledge Flows and Productivity: Intra- vs. Inter-Industry Spillovers

The effects of international knowledge spillovers on total factor productivity (TFP) at the industry level are examined by using a panel of 13 manufacturing industries across 15 OECD countries over 23 years. We distinguish between intra- and inter-industry spillovers from the information on patent applications and citations. Patent data are taken from the Japan Patent Office and the United States Patent and Trademark Office. Using four alternative spatial panel estimation techniques, we find that international knowledge spillovers within the same industry significantly contribute to sectoral TFP. In contrast, there is little evidence of a positive effect of international knowledge spillovers on TFP across industries.     

Agglomeration Economies and Productivity Growth in Manufacturing Industry: Empirical Evidence from Indonesia

This study examines the effect of agglomeration economies on productivity growth in Indonesian manufacturing industries during the first decade of this century. Productivity growth is measured at the firm level using the Färe‐Primont Productivity Index. Each firm's productivity growth is then regressed against a set of firm and industry characteristics, including three measures of agglomeration representing the effects of specialisation, diversity and competition. The results show evidence of a positive specialisation effect and a negative diversity effect for aggregate manufacturing and sub‐sectors. Furthermore, there are mixed effects across industries, suggesting that Porter's competition externalities stimulate firm productivity growth under some conditions but not others.     

International R&D Spillovers: Trade,FDI, and Information Technology as Spillover Channels*

With the rapid pace of economic integration, the productivity of a country depends not only on domestic R&D, but also on foreign R&D through technology diffusion across countries. The advancement of information technology (IT) has made the international transmission of knowledge faster and more efficient, providing an important channel for international R&D spillovers. This paper investigates three channels of international R&D spillovers: trade, FDI, and information technology. Applying panel cointegration and dynamic OLS analysis to the data for 21 OECD countries plus Israel during the period from 1981 to 1998, we find that bilateral trade remains an important conduit for international R&D spillovers. Although bilateral FDI is found to be positively related to international R&D spillovers, their impact on productivity growth is relatively small. We also find that the development of information technology has played a more important role in international R&D spillovers and productivity growth in recent years.     

Firm productivity and agglomeration economies: evidence from Egyptian data

This paper attempts to shed the light on the nexus between firms’ productivity and economies of agglomeration in Egypt. Using a large dataset of firms in 342 firms’ four-digit activities in 27 regions (62,108 firms), we introduce three measures of agglomeration which are urbanization or firm diversification measured by the number of firms by governorate, localization and specialization measured by the average productivity by governorate and sector (generating externalities and knowledge spillovers) and finally competition measured by the number of firm operating in the same governorate and the same sector. We find strong evidence for the existence of agglomeration in Egypt after controlling for firm age, location, economic activity and legal status. In the Egyptian context, productivity spillovers gained from agglomeration measures outweighed the negative effects of competition implied by congestion. The latter is chiefly due to the lack of good infrastructure. When regressions are run by firm size, location and activity, our main findings show first that micro and small firms are more likely to benefit from localization and diversification compared to medium and large firms. Service firms benefit more from high level of diversification while manufacturing firms gain more benefits from knowledge spillovers and specialization in Egypt.     

制造业FDI行业内和行业间溢出对全要素生产率变动的影响*

在中国制造2025的大背景下,如何利用FDI来促进制造业全要素生产率、技术效率与技术水平的提升具有重要意义。采用2005—2014年中国制造业的26个行业的面板数据实证分析FDI行业间和行业内的技术溢出对全要素生产率变动的影响,结果发现行业内直接溢出能有效促进内资制造业全要素生产率和技术效率的提高;行业内间接溢出则会挤占内资企业的生存空间阻碍全要素生产率、技术效率和技术水平的增长;行业间后向关联程度能显著且明显地促进内资制造业全要素生产率和技术效率的提升;行业间前向关联程度能显著但微弱地抑制内资制造业全要素生产率和技术效率的提升。     

中国高新技术产业集群知识外部性效应分析

近年来,中国科技体制改革取得重大成就,国家高新技术产业快速发展。知识外部性作为产业集群发展的驱动因素,其在创新生态系统中的溢出效应日益受到学者的重视。以91个城市国家级高新技术产业开发区为研究对象,对其知识外部性的Mar效应和Jac效应进行测度,并给出国家高新技术产业集群知识外部性的辐射范围,定量计算知识外部性对经济增长和技术进步的效应。结果表明:中国高新技术产业集聚过程中产业内知识溢出效应更大,西部地区高新技术产业集群Jac外部性对于区域经济增长更具有显著的正向作用。研究的创新点在于,同时兼论了Mar效应和Jac效应,将样本划分为东部、中部、西部和东北部进行测度和分析,研究结论更具有区域针对性。     

中国国防工业全要素生产率测算与分析

利用2004—2020年中国11大军工集团财务报表数据,从企业微观角度出发,运用LP方法计算国防工业全要素生产率并分析其变化趋势。结果表明,样本期内,我国国防工业全要素生产率总体呈波动上升趋势,其增长率高于制造业整体水平但低于高技术产业增速,说明国防工业技术进步比较明显,但进步速率还不够高;各细分军工行业全要素生产率存在较大差异,电子工业和船舶工业全要素生产率均值比其它军工行业高。收敛性分析表明,国防工业中,全要素生产率较低企业对较高企业具有追赶效应。建议军工行业必须转变增长方式,向集约型发展方式转变,提高发展质量;加大研发投入力度,重点扶持技术发展相对缓慢的行业,促进军工行业协调发展;贯彻军民融合发展战略,促进先进民用技术转军用。     

International technological spillovers from ICT‐producing manufacturing industries: a panel data analysis

This paper examines the effect of the international diffusion of technological capacity from ICT sectors on the total factor productivity in developed countries. Special attention is paid to the construction of a more recent and homogeneous industry‐level data set using unit value ratios and a hedonic price index. A cointegration analysis is performed on this annual panel data for 10 manufacturing sectors in six OECD countries over the period 1979–2001.

On the basis of our results, we may conclude that a country receives more international technology spillovers in its manufacturing industries the closer its relations with more technologically advanced nations are and the more open it is to imports. Meanwhile, information and communication technologies developed abroad increase the total factor productivity of each of the manufacturing sectors of a country, and this effect is enhanced where ICT goods are imported from nations with advanced technology of this kind.     

Agglomeration economies in manufacturing industries: the case of Spain

This study analyses the extent of geographical concentration of Spanish industry between 1993 and 1999, and studies the agglomeration economies that could underlie that concentration. The results confirm that there is major geographic concentration in a number of industries with widely varying characteristics, including high-tech businesses and those linked to the provision of natural resources as well as traditional industries. The analysis of the scope of spillovers behind this agglomeration supports the idea that transportation costs may induce plants in some industries to locate near their customers and suppliers. However, one cannot conclude that this is a common fact for all industries. This study also shows that the higher the technological level of an industry, the higher the agglomeration it experiences. This result implies the importance of the labour market, informational spillovers and producer services location for the agglomeration of these industries.     

长江三角洲城市群科技服务业效率评价

根据科技服务业内涵,将其划分为五大细分行业,以长江三角洲城市群为主要研究对象,使用2010-2016年投入与产出数据,建立超效率DEA模型,并运用视窗分析评价长江三角洲城市群五大细分科技服务业发展效率。研究结果表明：规模无效是导致各区域科技服务业综合技术效率未达到有效的共性因素;我国科技服务业需要优化投入产出结构,扩大规模效应;长江三角洲城市群科技服务业综合技术效率水平及趋势具有显著差异。据此,分别对全国及长江三角洲城市群五大细分科技服务业发展提出改进对策。〖JP〗     

Trade, Human Capital, and Technology Spillovers: an Industry-level Analysis

This paper studies whether trade promotes North–South and South–South technology spillovers at the industry level, and how the absorptive capacity of the South affects the impact of the technology spillovers. Using data from 16 manufacturing industries in 25 developing countries from 1976 to 1998, the paper shows: (i) North–South trade‐related R&D has a substantial impact on total factor productivity in the South; (ii) South–South trade‐related R&D also promotes technology spillovers but with a smaller magnitude; and (iii) human capital is very important in facilitating North–South and South–South technology spillovers: an increase in human capital could lead to over three times the size of technology spillovers from an increase in trade‐related foreign R&D.     

Trade in capital goods generated by international diffusion of technology

This paper examines the dynamics of national income of developing countries, which must import advanced capital goods so as to use technology which has been learned. The main result is that depending on foreign countries for capital goods has no negative effects on real wage rates, which are determined solely by labour productivity of indigenous industries. The analysis also covers the mechanism of export-oriented growth of developing countries and its effects on developed countries. All of the explanations are quite simple, however, none of them can be derived if international learning or trade in capital goods is ignored.     

Using panel VAR to analyze international knowledge spillovers

Technology diffusion often plays a critical role in models of trade and economic growth. Most existing empirical tests for international technology spillovers suggest some role for spillovers in explaining productivity growth. It has been relatively difficult, however, to identify separate roles for the direct and indirect channels of knowledge spillovers. The influence of these channels is often confounded owing to the focus on total‐factor productivity (TFP) and R&D spending within a cross‐section or panel data setting. This paper employs an alternative methodology to investigate the role of direct knowledge spillovers. Using citation‐weighted domestic patents, citation‐weighted foreign patents and value added for 14 U.S. manufacturing industries over the period 1977 to 2004 a panel VAR methodology is employed to investigate the dynamic role of direct and indirect knowledge spillovers. Evidence for the role of the direct knowledge spillovers channel is found—an increase in citation‐weighted patents abroad directly increases the measure of domestic citation‐weighted patents, after accounting for the influence of productivity/value added. The role of foreign innovative activity, however, is small relative to the role of U.S. innovative activity in explaining the dynamics of industry value added.     

产业协同集聚对经济高质量发展的影响

以创新能力为中介变量,剖析产业协同集聚对经济高质量发展的影响机理,构建门槛效应模型,收集2005—2019年中国内地30个省市区产业协同集聚、创新能力、经济高质量发展相关数据,准确测度产业协同集聚及其通过创新能力对经济高质量发展的影响效应,运用Arcgis软件对产业协同集聚水平进行可视化分析。结果表明,我国产业协同集聚呈现不均衡特征,在空间上,除西部协同集聚区（四川、重庆、贵州、陕西）外,呈现东高西低、沿海高内陆低的特征,马太效应显著;在时间上,呈现四足鼎立的演化趋势。依据自身产业协同集聚与经济高质量发展的协同性水平,各省可采取协同集聚与经济高质量维持型、协同集聚与经济高质量加强型、协同集聚度加强型、经济高质量加强型的差异化策略。产业协同集聚对创新能力和经济高质量发展都存在双门槛效应,影响效应边际递减。     

基于面板数据的制造业国际R&D溢出及生产率增长途径分析

为了检验产业自身科技水平对制造业国际R&D溢出效应及产业生产率提高途径的影响,根据1999—2004年产业R&D平均投入强度,将制造业划分为高、中、低技术产业,然后基于DEA对其全要素生产率变化、技术效率变化和技术进步变化指数进行测算,最后实证检验了国内本产业、国内其它产业、国外本产业R&D资本对上述3类产业全要素生产率变化、技术效率变化和技术进步变化的不同影响。结果表明:国外R&D资本对高技术企业存在显著的正向技术溢出效应,而对于中、低技术产业来说,本产业R&D资本是生产率提高的主要来源。根据上述分析结果,对我国的产业研发投入、国际贸易政策的制定提出了建议。     

Regional foreign direct investment and technology spillover: evidence across different clusters in India

This paper examines whether there exist productivity spillovers from foreign direct investment (FDI) to domestic firms at the regional level, using firm-level panel dataset covering 22 manufacturing industries in India from 2000 to 2012. In order to estimate the productivity spillovers from FDI at the regional level, we select 10 industrial clusters across 4 regions in India. In estimating productivity, we control for a possible simultaneity bias by using semi-parametric estimation techniques. We find that local firms benefit from horizontal and vertical FDI, but the benefits from the latter are found to be substantially stronger. The absorptive capacity of domestic firms is highly relevant to harvest the spilled technology from foreign-owned firms. Furthermore, we find that domestic firms belonging to high-technology industries benefit more from FDI at the regional level. We also find that market concentration is a crucial conduit for firm innovation, technological upgradation, and having a direct effect on local firm total factor productivity.     

Agglomeration economies in the finnish manufacturing sector

Regional concentration of population and economic activity is a common phenomenon both in Finland and the other most developed countries, which refers to the existence of agglomeration economies. Two types of economies are usually recognized to be important: specialization (Marshall externalities) and diversity (Jacobs externalities) economies. The former refer to the geographical concentration of a specific industry and the latter to the industrial diversity of the local system. This study examines the relationship between agglomeration economies and regional productivity in the manufacturing sector in Finland. A distinction is made between the effects of urbanization and localization economies. The production function method is applied to the manufacturing sub-sectors in the 83 NUTS 4-level regions in 1995 and 1999. The results support the regional specialization more than diversification even if some differences can be seen between the manufacturing sub-sectors.     

Competition policy in open economies

Abstract

This paper examines aspects of R&;D spillovers across countries, in particular, the role of international trade and human capital as the catalysts for international diffusion of technology. We present a new way of measuring foreign R&;D stocks embodied in foreign intermediate goods and capital equipment, which we argue is free from the criticism of previous measures. With the pooled panel data spanning 1970 through 1995 for 103 countries, we find that the effects of foreign R&;D on total factor productivity growth of both industrial countries and developing countries are substantial and that human capital is the most influential channel for absorbing foreign R&;D spillovers.     

International Transmission of Technology and Trade: The Role of Cross-country Heterogeneity

In the framework where the channel of international transmission of technology is trade in intermediate inputs, this paper investigates the role of heterogeneities across countries. In particular, this paper analyzes how cross-country differences in production structure, national innovative capacity, and absorptive capacity affect the scope and magnitude of international R&D spillovers on productivity. The study is based on the industry-level data set that covers eight OECD countries from 1970 to 1995. It finds that accounting for cross-country differences in each of production structure (using country-specific input–output relations) and national innovative capacity (using patents granted per R&D investment) yields significantly different spillover effects than previous studies. This suggests that the effect of international R&D spillovers depends on both production structure and the pattern of international trade. Further, it finds the absorptive capacity of a country is positively related to spillovers.     

Climate Policy under Technology Spillovers

We study climate policy when there are technology spillovers between countries, as there is no instrument that (directly) corrects for these externalities. Without an international climate agreement, the (non-cooperative) equilibrium depends on whether countries use tradable quotas or carbon taxes as their environmental policy instruments. All countries are better-off in the tax case than in the quota case. Two types of international climate agreements are then studied: One is a Kyoto type of agreement where each country is assigned a specific number of internationally tradable quotas. In the second type of agreement, a common carbon tax is used domestically in all countries. None of the cases satisfy the conditions for the social optimum. Even if the quota price is equal to the Pigovian level, R&D investments will be lower than what is socially optimal in the quota case. It is also argued that the quota agreement gives higher R&D expenditures and more abatement than the tax agreement.