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IT Investment and its Economic Impacts

IT投资及其经济影响

基本信息

批准号：
12630023
负责人：
KURIYAMA Tadashi
金额：
$ 2.05万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

项目摘要

(1) We estimated value added, non-computing equipment capital stock and computing equipment capital stock(CCS) of 27 industries with Input Output tables and fixed capital matrix. The Cobb-Douglas production functions with value added as dependent variable is estimated using cross-section data and panel data. The marginal elasticity of CCS is positive, and it turns out that the marginal productivity of CCS is about 10 times of that of non-computing equipment capital stock.(2) We investigated the impact of information technology on industrial structure by input-output analysis, 83 industries were classified into five groups: IT industry, information communication service industry, information support industry, non-information production industry, and non-information service industry. The internal multiplier of IT industry in 1995 is 1.29, smaller than 1.57 of production industry. But its pace of increase is large and IT industry is considered to be the group which will play a substantial … More role for the recovery of Japanese economy. IT industry, information communication service industry and non-information service industry are becoming more and more closely tied in with each other.(3) We carried out a questionnaire survey on firms listed in stock market and estimated value added, labor input and capital stock from the financial report of the respondents, Cobb-Douglas production function is used to find out relationships between their labor productivity, IT introduction, decision-making system, the skill of human resources and other organizational structure. It reveals that combinations of high level IT introduction and high level of human resources promote their productivity. This finding is same as precedent researches of Japan and the U.S., However, combinations of high level IT introduction and centralization of decision making promotes their productivity. This finding is contrary to that of precedent researches. It suggests that the productivity in Japan can be high when IT and human resources are connected with more centralized decision-making instead of decentralized one. Less

(1)本文利用投入产出表和固定资本矩阵对27个行业的增加值、非计算设备资本存量和计算设备资本存量进行了估算。本文利用截面数据和面板数据对以增加值为因变量的柯布-道格拉斯生产函数进行了估计。CCS的边际弹性为正，结果表明CCS的边际生产率约为非计算设备资本存量的10倍。(2)本文运用投入产出分析方法，将我国83个产业划分为信息技术产业、信息通信服务业、信息支持业、非信息生产业和非信息服务业五大类，研究了信息技术对产业结构的影响。1995年信息技术产业的内部乘数为1.29，小于生产性产业的1.57。但它的增长速度很大，IT行业被认为是将发挥实质性作用的群体。 ...更多信息对日本经济复苏的作用。信息产业、信息通信服务业和非信息服务业之间的联系越来越紧密。(3)本文通过对上市公司的问卷调查，从企业的财务报告中估算出企业的增加值、劳动投入和资本存量，并运用柯布-道格拉斯生产函数分析了企业的劳动生产率、信息技术引进、决策制度、人力资源技能等与企业组织结构的关系。结果表明，高水平的信息技术引进和高水平的人力资源相结合，促进了生产率的提高。这一发现与日本和美国的先例研究相同，然而，高水平的IT引入和决策的集中化相结合，提高了他们的生产力。这一发现与以往的研究结果相反。这表明，当IT和人力资源与更集中的决策而不是分散的决策相联系时，日本的生产率可以很高。少