The economics of industrial R & D

The relationship between research and commercial operation is examined in terms of production using a simple Cobb-Douglas production function, where output is expressed in terms of inputs of labour, capital and‘technical progress’. The model was tested in a single company environment by multiple regression analysis of output as the dependent variable on various measures of research, labour and capital. The results of the regression analysis are in full agreement with the model as outlined and the assumption that output is dependent simultaneously on labour, capital and the cumulative research investment.     

The impacts of country characteristics upon the value of information technology as measured by productive efficiency

Based on the theory of production, this paper investigates information technology (IT) contribution at a country level by linking it to the complementarity/substitutability phenomena created by the joint presence of IT and the five selected national characteristics. It negates the relationship between IT value and productivity based on a comprehensive panel data set from 25 countries over the period 1997-2006, when the individual analytical method is applied and productive efficiency is used as the performance criterion. The IT productivity paradox is re-examined under the one-equation stochastic frontier production model, while the influence of the five national characteristics is tested under the two-equation stochastic frontier production model. The findings include the following: (i) The IT productivity paradox occurs in not only middle-income (developing) countries but also high-income (developed) countries. (ii) Eastern European countries gain more productive efficiency than the G7 countries when IT is considered as a production factor. (iii) Different national characteristics have impacts on a country's output and productive efficiency. (iv) The chosen national characteristics present both complementarity and substitutability phenomena in association with IT investment, however, the joint presence of national savings and IT creates the substitutability phenomenon across different frontiers. (v) In linking cross-country differences in the IT investments to stages of economic development, our complimentary qualitative analysis tends to conclude that the investments in IT in the advanced developed countries (e.g., G7) and some of the newly developed or emerging economies are likely needed to keep the pace with other competitors and maintain their status of economic development; and the IT investments in the Eastern European countries are necessary to reach the competitive level as well as to raise their economic-development level. (vi) An important policy implication is that policy makers must carefully utilize national characteristics while formulating IT investment strategies.     

The long-run impact of Information and Communication Technology on economic output: The case of Australia

This paper investigates the cointegration and causal relationships between Information and Communication Technology (ICT) and economic output in Australia using data for about five decades. The framework used in this paper is the single-sector aggregate production function, which is the first comprehensive approach of this kind to include ICT and non-ICT capital and other factors to examine long-run Granger causality. The empirical evidence points to a cointegration relationship between ICT capital and output, and implies that ICT capital Granger causes economic output and multifactor productivity, as does non-ICT capital.     

ICT as a source of output and productivity growth in Finland

This paper analyses the impacts of information and communications technology on output and labour productivity growth in Finland in 1995–2005. Information and communications technology (ICT) accounted for 1.87 percentage points of the observed labour productivity growth at the average rate of 2.87 per cent. The contribution from increases in ICT capital intensity was 0.46 percentage points. The rest is attributed to multi-factor productivity growth in ICT production, especially in telecommunications production. The ongoing outsourcing of ICT production to low-wage countries provides a threat to productivity performance in the future. Policy makers should consider where the next wave of productivity growth will come from.     

The evolution of hog production and potential sources for future growth in China

Following reforms to the market, China’s hog industry has developed rapidly, however, with social and economic transitions, China’s hog industry is facing challenges which might restrict long-term growth in production. This paper analyzes the changes in regional scale, organization, input factors, and technological progress for China’s hog production over the last few decades. The paper seeks to reveal the sources of hog production growth and provide some suggestions for future development of the hog industry. To achieve these aims, the paper uses stochastic frontier production functions and the Malmquist index to measure total factor productivity (TFP) in the hog industry and decompose TFP into technical efficiency; technological progress; scale efficiency; and allocative efficiency using data for 25 provinces from 1980 to 2008. The results show firstly that; the TFP of hog production increased by 64.3% from 1980 to 2008, and allocative efficiency and scale efficiency improvements played a key role in this TFP growth. In contrast, technical efficiency and technical progress have changed little over this period. Secondly, TFP’s contribution to output was 39.7%, it being less than that of factor inputs to output. Thirdly, the results suggest that the growth of China’s pork production depends mostly on the increase in the quantity of factor inputs, especially feed. As a consequence, the key to ensuring long-term and stable development of China’s hog production would seem to involve focusing on enhancing total factor productivity and changing the pattern of production growth.     

Analyzing the relationships between information technology, inputs substitution and national characteristics based on CES stochastic frontier production models

This research examines four interrelated issues at the country level: the value of information technology (IT), inputs substitution and complement, the complementarity phenomenon created by IT and national characteristics, and the productivity paradox, jointly and critically from a global perspective, using the so-called productive efficiency as the performance measure. To that end, we develop the three-factor constant elasticity of substitution (CES) stochastic production frontier model and apply it to a set of panel data from 15 countries over the period 1993–2003, along with the traditional two-factor CES models, within the one- and two-equation frameworks. In the two-equation setting, six national characteristics are selected as the contributing factors of the productive efficiency. The findings include: (i) the value of IT as measured by the productive efficiency is duly recognized: (ii) the productivity paradox is found to be absent from the production process in a majority of developed and developing countries considered, rejecting the existing argument that the paradox exists only in developing economies but does not exist in developed countries; however, the developed countries have used IT capital in their production systems more productively efficiently than the developing nations; (iii) traditional capital (non-IT capital), traditional labor, and IT capital are not pairwise substitutable, contrary to the notion that they are pairwise substitutable at the firm level; (iv) constant returns to scale, as commonly assumed, are not supported by the data; (v) different national characteristics affect a country's output (represented by gross domestic product or GDP) and its productive efficiency differently; and (vi) the complementarity phenomenon is observed in most of the countries (developed and developing) under study.     

Flawed Competition Policies: Designing ‘Markets’ with Biased Costs and Efficiency Benchmarks

Rather than the endogenous, tournament-type regulation based on mean costs proposed by Shleifer almost twenty years ago, regulators have opted for market designs based on exogenously determined efficiency comparisons reflected in fixed productivity adjustments. These productivity assessments are based only on estimates of technical efficiency improvements derived from estimated production frontiers. Utilities’ prices and potential profits are driven by this externally determined market. This paper examines the impacts on utility efficiency rankings from variations in peer group frontier regulation in Europe and Australia as well as in its use in the U.S. Despite the potential for distortions caused by long periods with non-market prices, these regulatory applications measure only technical efficiency, leaving moot the assessment of optimal input selection. We examine both technical and allocative efficiency variations among firms from the different cost specifications employed by regulators involving output, factor inputs, and costs. How are rankings impacted when only subsets of total costs (e.g., O&;M, not capital or system losses) are used to gauge efficiency? Does the use of partial measures of capital relying on physical specifications impact efficiency rankings? Are rankings affected when comparisons are made independently one input at a time? Is the efficiency frontier stable? Finally, we compare alternative yardstick measures to a simple ranking on relative (total) cost per unit.     

长三角政府公共资本和民营资本生产率及其经济增长效应的比较研究

近10年来长三角的公共投资（分配）过多地流向了上海、杭州、南京等大城市．导致这些城市人均资本拥有量总体大幅上升，从而引发其边际生产率递减情况的发生。而它们的资本利用效率或者技术创新水平至少是没有明显提升（或是下降），还不足以抵消其资本边际生产率下降的趋势。而位于长三角外围边缘的中小城市的资本边际收益正处于上升期却显得公共投资不足以及人均资本存量过低。倾斜式的公共资本分配政策延滞了长三角中小城市的经济发展。     

Oligopolistic competition,IT use for product differentiation and the productivity paradox

Empirical studies suggest that the huge investment in information technologies (IT) of the past two decades has led to no significant increase in productivity; this phenomenon is known as the ‘productivity paradox’. It has been argued that the paradox might result from oligopolistic competition: because of strategic interaction, each individual firm might find it profitable to invest in cost-reducing IT, but total investment might then be excessive from the industry’s point of view. I confirm this view and strengthen it by allowing IT investment to be also devoted to product differentiation which makes the productivity paradox more likely. The emergence of Web-based electronic commerce provides an illustration of the forces identified in the model.     

信息技术革命与生产率悖论

信息技术革命无疑是人类经济史上一次意义深远的技术进步,但是统计上的观察表明,自20世纪六七十年代美国爆发信息技术革命以来,经济不仅没有得到更快的增长,而且与此前的年份相比,劳动生产率、全要素生产增长水平反而呈现出一种下降的趋势。理论上,一般把这种现象称作为“生产率悖论”。本文试图对这一悖论的几种解释进行考察和评析,以期为国内相关研究提供一个理论基础。     

Computer Use and Productivity Growth in US Federal Government Agencies, 1987–92

We examine the impact of information technology (IT) on productivity in the public sector econometrically, using data from the BLS Federal Productivity Measurement Program and from Computer Intelligence Infocorp, and by interviewing some government officials. We estimate a production function for government services that includes IT capital as an input, and find a strong positive relationship across federal agencies between productivity growth and computer-intensity growth during the period 1987–92, controlling for growth in compensation and other outlays per employee, and in the number of employees. Our estimates are consistent with the hypothesis that there are 'excess returns' to IT capital.     

Knowledge capital and the private rate of return to R&D in Japanese manufacturing industries

This paper examines the relationship between R&D investment and the rate of increase of labor productivity in Japanese manufacturing industries, and derives the rate of return to such investment through a Cobb-Douglas production function which explicitly includes knowledge capital stock. It is argued that the rate of return to R&D investment has been much higher than those of alternative investments but has declined in recent years as the dependence on imported technologies has been diminishing after the last half of the 1970's.     

Radial and non-radial decompositions of Luenberger productivity indicator with an illustrative application

Viewing slacks as one possible source of inefficiency, and that inputs have differential importance in the production process, this paper develops, based on the directional Russell measure of inefficiency, the non-radial Luenberger indicator. This indicator is then shown as the sum of the individual input-specific Luenberger indicators. The Luenberger indicator and its various input-specific indicators are also then shown as the composite measure of efficiency change and technical change. This decomposition enables the researcher to empirically examine the contributions of each factor input towards the productivity change and its components—efficiency change and technical change. Our proposed decomposition scheme is then empirically illustrated to analyze the eco-productivity performance behavior of the 22 OECD countries during the period 1995-2004. Our results indicate that first, the productivity change estimates yielded from the non-radial Luenberger indicator are different from those yielded from its radial counterpart, when slacks are present; second, most of these countries are found experiencing productivity growth due to technical progress alone; and finally, as regards the order of input-specific contributions towards productivity growth, capital contributes the most, followed by savings in emissions and labor, respectively.     

基于DEA-Malmquist指数的军工企业改制效率研究

本文以十大军工集团旗下真正涉及军工业务的22家上市公司为样本,以军品资本运作进入到实 质阶段的2008～2013年为观察期,以年报数据为基准,运用DEA-Malmquist指数对全要素生 产率、技术进步和技术效率进行测算。结果显示,上市军工企业的规模效率上升了19%, 但由于管理机制、技术水平等因素的制约,上市军工企业的综合技术效率只上升了04%; 另一方面,由于上市军工企业技术进步指数下降72%,导致全要素生产率下降了68%。军 工企业在改制重组的过程中应不断通过管理机制、科技创新等提高效率。     

ICT investment-specific technological change and productivity growth in Korea: Comparison of 1996–2005 and 2006–2015

This paper analyses the impact of information and communications technology (ICT) on the productivity growth in Korea with the dynamic general equilibrium (DGE) model including investment-specific technological change. According to the balanced growth path analysis, ICT investment-specific technological change accounts for 18.8% to labor productivity growth in 1995–2005, then 14.3% in 2006–2015, and the decline in the rate of ICT investment-specific technological change has contributed to the slow productivity growth since the mid-2000s. In cyclical fluctuations, ICT investment-specific technological shocks were significant in output variance in 1996–2005, but neutral technological shocks and non-ICT investment specific shocks became dominant in 2006–2015. In sum, it can be concluded that the impacts of ICT investment-specific technology have diminished in the growth path and cyclical fluctuations. The result that increased (decreased) ICT investment intensity with faster (slower) ICT investment-specific technological change lead to higher (lower) productivity growth indicates that Korea has been a case against the productivity paradox, and sustained technological progress in ICT and expansion of ICT usage could have boosted the productivity growth. Therefore, this study implies that facilitating ICT progress and ICT usage outside of the already well-performing ICT manufacturing can help Korean economy raise the productivity growth rate.     

中国工业企业创新全要素生产率评价——基于双前沿面网络 DEA-Malmquist 指数模型

本文将工业企业创新活动划分为两个阶段--研发阶段和生产阶段，建立了基于双前沿面的网络 DEA-Malmquist 指数全要素生产率评价模型，对 2013~2014 年，2014~2015 年中国 35 个工业细分行业的创新全要素生产率进行了评价。评价结果表明：在两个期间内，研发阶段全要素生产率的增长主要依赖于技术进步增长，生产阶段全要素生产率的增长主要是由技术效率变化和技术进步二者共同决定的。从系统整体来看，中国绝大部分工业细分行业全要素生产率变化呈现正增长趋势。     

Does ICT investment widen the growth gap?

This paper builds a model of cumulative growth to examine the dynamic interdependent relationship between Information and Communication Technology (ICT) investment and economic growth for a sample of 29 countries in the 1990s. We confirm the following facts: First, there is a positive correlation between ICT investment and economic growth. Second, non-ICT investment has as much influence on the growth gap as ICT investment. Third, those countries with a solid economic infrastructure and open trade regime experience more active ICT investments. Fourth, those countries with a comparatively lower productivity level can reduce the gap using knowledge spillovers from more advanced countries. Fifth, reinforcement of patent rights has a positive influence on economic growth by stimulating the accumulation of ICT capital. Finally, ICT investment does not have a strong interdependent relationship with economic growth, while non-ICT investment has a cumulative causal relationship with economic growth and plays a key role in the process of widening the growth gap.     

ICT capital and labour productivity growth: A non-parametric analysis of 14 OECD countries

This paper uses a new set of country data for 14 countries, members of the OECD, and a non-parametric approach to provide new evidence on the impact of Information and Communication Technology (ICT) on labour productivity growth between 1995 and 2005. For the first time, in the present paper a bootstrap approach for the decomposition of labour productivity change, proposed by Kumar and Russell (2002), is employed. This approach permits to conduct statistical inference on the parameters of interest, and to analyse the effects of ICT technologies on capital accumulation. The results confirm the role of ICT as a general purpose technology that needs organisational and business process changes to fully exploit its growth opportunities. The paper also finds out, by applying a non-parametric test, that ICT technologies positively contribute to the generation of convergence clubs in the evolution of labour productivity. Finally, the empirical evidence offers some basic guidance for future policy intervention in supporting ICT capital investments.     

The R&D performance in Taiwan's electronics industry: a longitudinal examination

R&D investment has been widely regarded as an important input for firms, particularly for high‐tech firms, to achieve competitive advantage within their industry. Hence, a number of high‐tech firms are now investing substantial amounts into R&D. Since R&D efforts enable firms to raise the competitive advantage, one noticeable and interesting issue expected to know is the degree to which R&D investment influences firm output performance. In Taiwan, much greater emphasis is also being placed into R&D investment in the high‐tech industries; however, R&D output performance has never been seriously examined within this sector. Since the island's electronics industry is widely regarded as the most promising industry in the ‘high‐tech sector’, and is expected to place greatest emphasis on its R&D efforts, we take the electronics firms as our analytical sample. This paper therefore sets out to estimate the impact of R&D on firm performance, in terms of productivity growth and the rate of return on investment, within the electronics industry in Taiwan, whilst also examining the Schumpeterian hypothesis, that R&D performance is an increasing function of firm size. Our examination of R&D performance is based on a panel sample of 83 large electronics firms, completely balanced over the period from 1994 to 2000, with series data of R&D capital also being constructed. Based upon the extended Cobb‐Douglas production function, a random effects model is developed with the estimations revealing that the output elasticity of R&D is around 0.19 and the average rate of return on R&D is around 22%. These findings clearly demonstrate that investment in R&D by these electronics firms has had an impact on their competitive advantage. Compared to the findings of previous studies, where the analytical unit of data was at firm level, here the rate of return on R&D is consistent with similar estimates for the US and UK, but lower than those for Japan. However, our estimations do not provide support for the hypothesis that the impact of R&D on productivity is an increasing function of firm size.     

承接东部产业转移对陕西技术溢出效应的实证分析

根据产业转移理论,承接产业转移、引进外省资金,能够促进承接地经济的增长、优化当地产业结构、带动技术的进步、增加劳动力就业等作用。本文根据C—D生产函数建立衡量技术溢出效应的数学模型,并进行了实证分析。实证结果表明,外省市直接投资对陕西技术进步存在正负效应,正效应在于促进经济的增长,而对陕西技术进步的促进存在负效应,没能引起技术进步的提高,原因可能在于注重引资的数量,忽视引资的层次和质量。