Using quantile regression, our results provide explanations for the inconsistent findings that use conventional OLS regression in the extant literature. While the direct effects of RD while firms' advantages with low RD whereas it is decreasing in high Q firms. Main banks add value for low to...

This study investigates the relationships between debt maturity structure and corporation R&D investment. Using a large sample of US listed firms over the period of 1995 to 2015, it was found that the use of bank debt positively influences R&D investment, whereas the use of public debt exerts a...