Mispricing of Research and Development Investments in a Rapidly Emerging and Electronics-Dominated Market

This paper documents prevailing mispricing of research and development (R&D) investments in the Taiwan stock market, a rapidly emerging and electronics-dominated market. Applying stock return data from July 1988 to June 2005, we observe that R&D-intensive stocks tend to outperform stocks with little or no R&D. The R&D-intensity effect cannot be attributed fully to firm size and seasonal effects. The R&D-associated anomaly not only exists but also persists for up to three years. The market apparently undervalues R&D-intensive firms and overvalues non-R&D-intensive firms. Finally, the R&D anomaly is clearer for firms in the electronics industry after 1996.