Research Article
The Influence of Outward Foreign Direct Investment on Enterprise Technological Innovation
Table 1
Matching results of experimental observation group and comparison group.
| | | Before matching | After matching | Experimental observation group | Comparative group | Match result | | ETI (experimental observation group) | ETI (comparative group) | T value | ETI (experimental observation group) | ETI (comparative group) | T value |
| | 2015 | 7.8902 | 5.0322 | 13.12 | 7.8902 | 7.9011 | 0.63 | 285 | 9022 | 530 | | 2016 | 7.9731 | 5.8391 | 30.49 | 7.9731 | 7.9720 | 0.03 | 321 | 15032 | 613 | | 2017 | 7.9084 | 5.9937 | 28.43 | 7.9084 | 7.9122 | 0.31 | 329 | 15442 | 647 |
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Note. , , and represent significance at the levels of 1%, 5%, and 10%, respectively. |
