The authors would like to make the following corrections to the published paper [1]. The changes are as follows:
- (1)
- Replacing the email address of the fourth author:
chaoqun-ni@uiowa.edu
with
chaoqun.ni@wisc.edu;
- (2)
- Replacing the sentence in Section 4.4., “Robustness Test”, on page 12:
“The second stage regression shows the coefficient of a directors’ master’s degree is still significantly negative.”
with
“The second stage regression results are consistent with Table 5.”;
- (3)
- Replacing the sentence in Section 4.4., “Robustness Test”, on page 12:
“F statistics (F = 25.82) is greater than the normal threshold of 10, indicating our IV passes the weak IV test and has strong explanatory power to the endogenous variable.”
with
“F statistics (F = 24.80) is greater than the normal threshold of 10, indicating our IV passes the weak IV test and has strong explanatory power to the endogenous variable.”;
- (4)
- Deleting “in the IT industry” in the sentence of “Therefore, we used engagement in R&D work as the IV to test the robustness of our research results in the IT industry.” in Section 4.4., “Robustness Test”, on page 12;
- (5)
- Deleting “in the IT industry” from the Table 9 caption: ”IV 2SLS regression results in the IT industry” on page 12.
- (6)
Table 9. IV 2SLS regression results in the IT industry.
with
Table 9.
IV 2SLS regression results.
Table 9.
IV 2SLS regression results.
| First Stage | Second Stage | |
|---|---|---|
| IFRD | 0.27 *** | |
| (0.03) | ||
| PDD | 2.44 ** | |
| (2.30) | ||
| PMD | −0.11 | 0.23 |
| (−0.03) | (0.88) | |
| PEM | 0.27 *** | −0.52 |
| (0.04) | (−1.16) | |
| PSE | 0.43 *** | 0.15 |
| (0.05) | (0.20) | |
| PC9 | −0.01 | 0.05 |
| (0.05) | (0.11) | |
| POI | 0.07 | −0.30 |
| (0.05) | (−0.68) | |
| ALR | 0.21 | −5.33 *** |
| (0.07) | (−4.84) | |
| Industry | controlled | |
| Constant | 0.09 | 2.78 *** |
| (0.10) | (4.11) | |
| N | 1374 | 1374 |
| r2 | 0.15 | 0.17 |
| F | 24.80 | |
Note: t statistics in parentheses. * p < 0.1, ** p < 0.05, *** p < 0.01.
Reference
- Wang, C.; Yang, J.; Cheng, Z.; Ni, C. Postgraduate Education of Board Members and R&D Investment—Evidence from China. Sustainability 2019, 11, 6524. [Google Scholar] [CrossRef]
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