英文摘要 |
The objective of this paper is to investigate whether market response to research and development expense (hereafter R&D) varies across firms’ life cycle stages. We hypothesize that response coefficients of firms’ R&D decrease from the growth to the stagnant portfolios. We divided samples into various life cycle portfolios based on methods developed by Anthony and Ramesh (1992). Consistent with our hypothesis, we documents that, like capital expenditure, a monotonic decline in the response coefficients of R&D cost from the growth to the stagnant stages. Furthermore, the findings also support the notion that the response coefficients of R&D are significantly greater than those of capital expenditures at the stage of growth compared to the stage of stagnant. Finally, we also find that difference in the coefficients between R&D and capital expenditures decreases from the growth stages to the stagnant stages. These findings are robust to control for size and risk effects. |