| Variable | Parameter | t-statistic | Sig.* | Adjusted R2 | d-Statistic |
| Intercept | −2.575199 | −5.495789 | 0.0027 | 0.768620 | |
| Foreign direct investment | 1.709043 | 3.038884 | 0.0288 | 1.764497 | |
| Royalty and license fee paid | 3.360568 | 2.780839 | 0.0389 | ||
| Technology product imports | 5.673318 | 3.226589 | 0.0233 |