Professionals engaged in the conception or creation of new knowledge (who conduct research and improve or develop concepts, theories, models, techniques instrumentation, software or operational methods) broken down by the sectors they are employed in (business enterprise, government, higher education and private non-profit organizations).
R&D surveys.
Adapted from OECD (2015), Frascati Manual 2015: Guidelines for Collecting and Reporting Data on Research and Experimental Development.