Czarnitzki, Dirk (contributor); Binz, Hanna L. (contributor) - 2008
This study tests for financial constraints on R&D investment and how they differ from capital investment. To identify …, measured by mark-ups, are more decisive for R&D than for capital investment. For external constraints, we find a monotonic … relationship between the level of constriction and firm size for both types of investment. Thus, external constraints turn out to …