We construct a unique panel dataset to examine how R&D and intellectual property (IP), via patents and trade marks, increase firm productivity. Knowledge has public good characteristics of non-depletability and non-excludability. Even with IP, imitation and inventing around other firm`s products...

We have constructed a novel panel dataset of UK manufacturing firms to examine how innovation, proxied by R&D and intellectual property (IP, covering both patents and trade marks), increases firm performance, as measured by firm net output (value added). Knowledge has public good characteristics...