Productivity analysis of IT capital stock: The USA-Japan comparison

Koji Shinjo, Xingyuan Zhang

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The purpose of this paper is twofold: The first is to examine the information technology (IT) capital investments (including software) and capital stock of the USA and Japan, not merely in the 1990s but from the long-ran historical viewpoint and compare the process of IT Revolution of the two countries, using the data from 1974 to 1998. The second is to check how those investments are justifiable, by calculating the marginal benefits and costs of IT related investments in the USA and Japan. We find that while the USA shows a tendency to overinvest in IT capital relative to non-IT capital throughout the observation period, the opposite is the case in Japan.

Original languageEnglish
Pages (from-to)81-100
Number of pages20
JournalJournal of the Japanese and International Economies
Issue number1
Publication statusPublished - Mar 2003


  • IT capital of the USA and Japan
  • Marginal benefit and cost

ASJC Scopus subject areas

  • Finance
  • Economics and Econometrics
  • Political Science and International Relations


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