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| 依变数：GDP | |||||
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| 模式1 | 模式2 | 模式3 | |||
| 独立变量 |
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| 研究发展支出(x1) | 0.434 (7.434) | *** |
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| 0.476 (6.537) | *** |
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| 专利总数(x2) | −0.176 (−2.666) | *** |
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| 发明专利(x3) |
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| −0.108 (−1.920) | * | −0.314 (−5.512) | *** |
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| 实用新型专利(x4) |
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| 0.364 (4.599) | *** | 0.100 (1.286) |
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| 外观设计专利(x5) |
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| −0.067 (−1.554) |
| −0.033 (−0.861) |
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| T − 1研发资本存量(x6) |
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| 0.052 (1.219) |
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| 控制变量 |
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| 企业数量(x7) | 0.728 (13.446) | *** | 0.780 (13.242) | *** | 0.650 (13.987) | *** |
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| R2 | 0.953 |
| 0.945 |
| 0.958 |
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| ΔR2 | 0.952 |
| 0.944 |
| 0.957 |
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