This study tests for financial constraints on Ramp;D investment and how they differ from capital investment. To identify constraints in the access to external capital, we employ a credit rating index. Our models show that internal constraints, measured by mark-ups, are more decisive for Ramp;D...

Previous literature provided evidence on financing constraints for investment in R&D activities due to capital market imperfections and special features of R&D investments. Moreover, it has been shown that a shift in capital structure towards more debt, results in a reduction of R&D investments....

The ability of firms to establish R&D collaborations that combine resources, exploit complementary know-how, and internalize R&D externalities has been shown to be of high importance for the successful creation and implementation of new knowledge. We argue in this article that collaborative R&D...

We analyze financial constraints for Ramp;D, where we account for heterogeneity among investments which has been neglected in previous literature. According to economic theory, investments should be distinguished by their degree of uncertainty, e.g. routine Ramp;D versus cutting-edge Ramp;D....

Previous literature provided evidence on financing constraints for investment in R&D activities due to capital market imperfections and special features of R&D investments.Moreover, it has been shown that a shift in capital structure towards more debt, results in a reduction of R&D investments....