Study of the determining factors in the performance of IT investment and its impact on the overall economy

本研究基于企业层面的数据库，将问卷调查结果与财务数据相结合，对日本的信息技术投资进行统计分析，以期得出为信息技术社会设计最佳政府干预的理论启示。我们的重点是a)找出此类投资的决定因素，b)描述其对当前宏观经济的影响，以及c)估计其对未来经济活动的影响。在我们的研究过程中，我们进行了多次问卷调查和计量经济学分析。本文还考虑了与以往实证研究和宏观经济分析的理论框架的一致性。中期研究结果在日本和国外举行的几次学术会议上进行了介绍，以听取相关研究人员和政策制定者的意见和反馈。本研究的主要发现包括：1。1 .日本企业的IT投资由于互补管理要素开发不足，未能充分发挥其潜力；信息技术的普及降低了信息搜索的感知成本，从而促使人们在参与购买活动时减少使用物理运输方式而不是某些电信方式的可能性；说谎。广播行业的信息技术（IT）投资削弱了现有商业模式的规模经济，使其分为节目制作部门和节目发行部门更加有效。

This study statistically analyzes the IT investment in Japan based on the firm-level database that combines the questionnaire results with financial figures in order to derive theoretical implications in designing optimal governmental intervention for the IT-based society.Our focuses are a)finding out the determining factors of such investment, b)describing its impact on the current macro-economy, and c)estimating its effect on the economic activities in the future.In the course of our study, we conducted several questionnaire surveys and executed econometric analysis. Consistency with theoretical frameworks of previous empirical studies and macroeconomic analysis is also considered. The interim findings were presented before several academic meetings held in Japan as well as in foreign countries to receive comments and feedbacks form related researchers and policy makers.Major findings of this study include :1.IT investment of Japanese firms has failed to realize its full potential due to insufficient development of complementary management factors ;2.IT penetration reduces the perceived cost of information search and then motivates people to reduce the possibility of using the physical transportation mode over some telecommunication methods when involved in purchasing activities ; and3.IT investment in the broadcasting industry impairs the economies of scale of current business models and makes it efficient to divide it into the program production section and the program distribution section.