Gross national expenditure on R&D (GNERD) comprises total expenditure on R&D financed by a country’s institutions regardless of where the R&D is performed. As such, it includes R&D performed in the “rest of the world” that is financed by national institutions or residents; it excludes R&D performed within a country that is funded from institutions outside of the national territory (that is, from institutions that are part of the “rest of the world”). GNERD is constructed by adding the domestically financed intramural expenditures of each performing sector plus the R&D performed in the “rest of the world” that is financed by domestic funding sectors.
R&D surveys.
OECD (2015), Frascati Manual 2015: Guidelines for Collecting and Reporting Data on Research and Experimental Development.