| Variable name | Data source | Mean | Standard deviation | Minimum | Maximum |
| tsim | UNCTAD | −2.1841 | 0.6653 | −4.4691 | −1.3863 |
| fdiingap | OECD | 0.2872 | 0.5683 | 0 | 7.2391 |
| fdioutgap | OECD | 0.3507 | 0.6545 | 0 | 5.9585 |
| iqi | World Bank | 0.9956 | 0.7318 | −1.7495 | 1.8727 |
| iqj | World Bank | 0.0639 | 0.6984 | −1.4357 | 1.7752 |
| lndist | CEPII | −8.0119 | 1.0188 | −9.8564 | −4.0879 |
| distw | CEPII | 4.8123 | 4.5928 | 0.1622 | 18.8845 |
| comlang | CEPII | 0.1242 | 0.3299 | 0 | 1 |
| contig | CEPII | 0.051 | 0.2201 | 0 | 1 |
| colony | CEPII | 0.0375 | 0.1902 | 0 | 1 |