Abnormal research and development investments and stock returns
Hilmi Songur and
Jason E. Heavilin
The North American Journal of Economics and Finance, 2017, vol. 42, issue C, 237-249
We investigate the relation between abnormal research and development (R&D) investments change and expected stock returns. We provide evidence that firms that abnormally increase their R&D investments (RDI) earn higher returns in comparison to the market portfolio. Specifically, our findings document an economically significant annual positive abnormal RDI returns that ranges from 3.2% to 11.5%. These findings are robust to well-established risk factors in the literature and suggest that the abnormal increases in RDI impacts stock returns.
Keywords: R&D intensity; Stock returns (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecofin:v:42:y:2017:i:c:p:237-249
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