Expert estimates
How estimates of the social return to R&D have moved as evidence accumulated. Charts are embedded from NBER's Datawrapper account by ID. The figures behind them are held as records, so the distribution can be cited and compared year to year independently of the charting tool.
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Published estimates (4)
The accessible table equivalent of the chart above, and the record set behind it.
| Estimate | Basis | Year | Value |
|---|---|---|---|
| Griliches, hybrid cornGriliches (1958) | public R&D | 1958 | 7 |
| Mansfield et al., industrial innovationsMansfield et al. (1977) | private R&D | 1977 | 56% |
| Jones & Summers, aggregate innovation investmentJones & Summers (2022), NBER WP 27863 | total R&D | 2022 | 12range 5 to 20 |
| Fieldhouse & Mertens, nondefense public R&DFieldhouse & Mertens (2025), NBER WP 33780 | public R&D | 2025 | 175%range 140 to 210 |
Figures are drawn from the published literature for demonstration and are approximate. Methods differ between studies and the numbers are not directly comparable.