This paper investigates whether an increase in the R&D tax credit rate stimulates firms' incremental R&D spending. We find that the increase in the credit rate has a positive effect on the R&D spending of high-tech firms with taxable status, but does not have the same positive effect on non-high...

This paper investigates whether an increase in the R&D tax credit rate stimulates firms’ incremental R&D spending, and whether firms plan their R&D spending to take advantage of additional tax credits for incremental R&D spending. We find that the increase in the credit rate has a positive...