R&D and market value of Japanese firms in the 1990s

There is a concern in Japan that the R&D profitability of its domestic firms fell significantly in the 1990s, following the US pattern in the 1980s. This paper finds, however, that the effect of R&D on the market value of a firm, relative to that of tangible assets, increased in the 1990s in terms of both within firm variations and cross section variations, even though the average market value itself significantly fell. More trade and higher foreign ownership significantly enhanced the market value of a firm, and so did more patents in sectors such as pharmaceuticals. J. Japanese Int. Economies20 (2) (2006) 155-176.