Audretsch, David B.; Hafenstein, Marian; Kritikos, Alexander - 2018
productivity - hold for knowledge intensive services. Combining the models of Crepon et al. (1998) and of Ackerberg et al. (2015 …), allows for causal interpretation of the relationship between innovation output and labor productivity. We find that knowledge … intensive services benefit from innovation activities in the sense that these activities causally increase their labor …