# get statistics about the research intensity of an industry

I want to know how much research is conducted in an industry in order to be able to say Industry X is more research intense than Industry Y.

For industry categorization I use the NACE classificiation.

I know that research intensity per se is an indicator which can be calculated as:

$R\&D~intensity = \frac{R\&D~expenditure}{gross~value~added}$

Ultimately, I want to be able to say, that some industries are more welcome to conduct R&D projects.

Please let me know, if there are any more suitable indicators than R&D intensity. Someone (informally) told me, that R&D intensity is out of fashion, and that IPP (intellectual property products) would be more suitable. However, I am not sure about that.