"Informationalization" of Economic Activities and Economic Growth

本文试图衡量新信息技术对日本经济增长的贡献。本研究将投入产出分析与要素生产率方法相结合，开发了一种实证方法，并将其应用于描述1974-83年日本经济增长的数据。研究发现，这一时期日本经济的年增长约有5%是由新信息技术的发展所解释的，如果没有这样的信息技术，1984年日本的人均国民收入将下降约12%。新信息技术的发展提高了日本社会活动的效率，特别是国家的总生产力，从而为日本经济的增长做出贡献。本文的目的是衡量这种贡献有多大。 ...更多信息 将被使用。首先，将新信息部门（H部门）和其他部门（Z部门）分为两个部门，构建日本经济的投入产出模型。通过使用投入产出模型的“价格增值版本”，每个部门的产出价值被分为H和Z分量。新的信息技术的直接和间接影响都考虑在内。其次，分别利用H价格平减指数和A价格平减指数构造了真实的H资本和真实的Z资本的序列。新信息技术的经济特征之一是其容量迅速增加，价格迅速下降，根据我们的计算，这一时期的真实的H资本增加了约300倍，对日本经济的增长做出了巨大贡献。最后，标准的要素生产率模型被用来估计新的信息技术的贡献分为H-和Z-组件的年增长率。少

The paper is an attempt to measure the contribution of new information technology to the recent growth of the Japanese economy. It develops an empirical method by combining input-output analysis and factor-productivity approach and applies it to the data describing the growth of the Japanese economy for the period of 1974-83. It is found that approximately 5% of the annual growth of the Japanese economy during this period is explained by the development of new information technology, and that without such information technology per capita national income of Japan in 1984 would have been lower approximately by 12% than its actual level.The development of new information technology has increased the efficiency of the activities of the Japanese society in general, and the aggregate productivity of the nation in particular, thereby contributing to the growth of the Japanese economy. The objective of the paper is to measure how much this contribution was.The following analytical strategy wi … More ll be used. First, an input-output model of the Japanese economy is constructed with two sectors, the new information sector (H-sector) and the other sector (Z-sector). By using the 'pricevalue-added version' of the input-output model, the value of the output of each sector is divided into H- and Z-components. Both direct and indirect effects of new information technology are taken into account. Second, series of the real H-capital and the real Z-capital are constructed by using H- and A-price deflators, respectively. It is noted that an economic characteristic of new information technology lies in the rapid increase in its capacity and the rapid decrease in its price; our calculation shows that the real H-capital during the period in question is increased by approximately 300 times, contributing to the growth of the Japanese economy significantly. Finally, the standard factor-productivity model is used to estimate the contribution of new information technology by dividing the annual rates of growth into H- and Z- components. Less