Public research and development (R&D) expenditures are defined as all R&D less private R&D; private R&D consists of industry financed expenditures in industry, in universities and colleges, or in other nonprofit institutions.
The public R&D contributions and stocks are calculated the similar way as the private R&D contributions and stocks, using the same R&D deflator, the same lags and depreciation rates, which differ between basic and applied research, as used in the calculation of private R&D stocks. The only difference is that public R&D stocks are built up from public R&D investment, the portion of total R&D not already included in the Bureau of Labor Statistics (BLS) data on privately financed research expenditures. Public research consists of research financed by government, universities and colleges, and other nonprofit institutions.
This document describes the procedures that BLS uses to estimate R&D stocks. BLS broadens its estimates of R&D spillovers to include spillovers from public R&D as well as private R&D. Though understanding of the magnitude of spillovers from public R&D is still somewhat limited, this memorandum uses the available evidence to generate estimates of the spillover from public R&D.
For more information, please see "Technical note on Public R&D and Productivity Growth" (PDF 227 KB).
Last Modified Date: July 23, 2012