In this work, we develop and apply a methodology to estimate technology-specific R&D investments at firm level and then use these to test some arguments that have become central in the innovation literature. In particular, we first combine R&D investments with patent data of the world top R&D...

In this work, we develop and apply a methodology to estimate technology-specific R&D investments at the firm level and then use these to test some arguments that have become central in the innovation literature. In particular, we first combine R&D investments with patent data of the world top...