The top 15 countries with the most scholars ranked by the international co-authored rate, data extracted from journals Chum, LLC/DSH, and DHQ, 1966–2017
| No. unique scholars | No. co-authored scholars | No. international co-authored scholars | Co-authored % | International co-authored % | ||
|---|---|---|---|---|---|---|
| 1 | Spain | 74 | 69 | 54 | 93.2% | 73.0% |
| 2 | Finland | 35 | 27 | 19 | 77.1% | 54.3% |
| 3 | Australia | 64 | 47 | 29 | 73.4% | 45.3% |
| 4 | Canada | 199 | 153 | 81 | 76.9% | 40.7% |
| 5 | UK | 461 | 322 | 168 | 69.9% | 36.4% |
| 6 | Germany | 187 | 141 | 56 | 75.4% | 30.0% |
| 7 | Netherlands | 117 | 88 | 34 | 75.2% | 29.1% |
| 8 | Italy | 103 | 80 | 26 | 77.7% | 25.2% |
| 9 | Belgium | 49 | 32 | 11 | 65.3% | 22.5% |
| 10 | China | 55 | 48 | 11 | 87.3% | 20.0% |
| 11 | Norway | 31 | 15 | 6 | 48.4% | 19.4% |
| 12 | Switzerland | 32 | 22 | 6 | 68.8% | 18.8% |
| 13 | Japan | 72 | 68 | 13 | 94.4% | 18.1% |
| 14 | USA | 1,044 | 680 | 164 | 65.1% | 15.7% |
| 15 | France | 151 | 105 | 23 | 69.5% | 15.2% |
| No. unique scholars | No. co-authored scholars | No. international co-authored scholars | Co-authored % | International co-authored % | ||
|---|---|---|---|---|---|---|
| 1 | Spain | 74 | 69 | 54 | 93.2% | 73.0% |
| 2 | Finland | 35 | 27 | 19 | 77.1% | 54.3% |
| 3 | Australia | 64 | 47 | 29 | 73.4% | 45.3% |
| 4 | Canada | 199 | 153 | 81 | 76.9% | 40.7% |
| 5 | UK | 461 | 322 | 168 | 69.9% | 36.4% |
| 6 | Germany | 187 | 141 | 56 | 75.4% | 30.0% |
| 7 | Netherlands | 117 | 88 | 34 | 75.2% | 29.1% |
| 8 | Italy | 103 | 80 | 26 | 77.7% | 25.2% |
| 9 | Belgium | 49 | 32 | 11 | 65.3% | 22.5% |
| 10 | China | 55 | 48 | 11 | 87.3% | 20.0% |
| 11 | Norway | 31 | 15 | 6 | 48.4% | 19.4% |
| 12 | Switzerland | 32 | 22 | 6 | 68.8% | 18.8% |
| 13 | Japan | 72 | 68 | 13 | 94.4% | 18.1% |
| 14 | USA | 1,044 | 680 | 164 | 65.1% | 15.7% |
| 15 | France | 151 | 105 | 23 | 69.5% | 15.2% |