Survey of IT Revolution and its Sustainability : Economic Analysis of IT Innovation

在这个项目中，我们对1.信息技术创新的当前趋势和可持续性进行了研究，2.信息技术对工业组织和结构的影响，以及3.信息技术对工业使用的经济影响。结果可以按以下方式概括，·发现IT创新自1990年代中期以来一直在加速，而摩尔关于半导体的法律最后超过30年。计算机系统的下降和因特网对信息技术创新的这一趋势的贡献。IT对工业组织和结构的影响将无法像工业界的普遍现象一样被看到。生产系统的模块化和不绑定的价值链可以在电子工业中被观察到，但不能用于其他工业。它发现了信息技术对经济增长的影响并不是日本和美国之间的区别。However，一家公司级分析显示，其对IT的影响与日本的工业相比很小。这就是为什么IT对日本经济增长的贡献可以主要解释IT供应商行业的生产力增长。

In this project, we have conducted the research on 1.Current trend and sustainability of IT innovation, 2.IT's impact on industrial organization and structure and 3.Economic implications on IT using industries. The results can be summarized as follows,・It is found that IT innovation has been accelerated since the mid 1990's, while Moore's law on semiconductor lasts for more than 30 years. Downsizing of computer system and proliferation of Internet contribute to this trend of IT innovation.・IT's impact on industrial organization and structure cannot be seen as an industry wide phenomenon. Modularization of production system and unbundling of value chain can be observed in electronics industry, but not for other industries.・It is found that the impact of IT on economic growth is not so difference between Japan and the United States. However, firm level analysis shows that its impact on IT using industry is smaller in Japan as compared to the US. That is, IT's contribution to economic growth in Japan can be explained mainly by productivity growth in IT supplier industries.