Correction

Figures & data

Table 1. Summary statistics.

Variable	Obs	Mean	Std. dev.	Min	Max
hdcn	1,578,797	0.0144	0.1191	0	1
expenditure on R&D	1,578,797	0.0132	0.1143	0	1
expenditure on technology innovation	1,578,797	0.0017	0.0409	0	1
fdi	1,578,797	0.0128	0.1123	0	1
firmsize	1,578,797	0.2077	0.4056	0	1
firmage	1,578,797	10.4468	10.1958	1	76
exp	1,578,797	0.0612	0.2396	0	1

Table 2. Estimated results.

Variables	hdcn (1)	hdcn (2)
fdi	0.835*** (−0.0169)	0.313*** (−0.0192)
exp		0.950*** (−0.0089)
firmsize		0.184*** (−0.0082)
firmage		0.912 (0.4782)
Constant	−2.212*** (−0.0035)	−2.392*** (−0.0046)
Observations	1,578,797	1,578,797
R-squred	0.0142	0.0916

Note: Robust standard errors in parentheses; ***p < 0.01, **p < 0.05, *p < 0.1

Table 3. Estimated results.

Variables	expenditure on R&D	expenditure on technology innovation
fdi	0.144*** (−0.0392)	0.307*** (−0.0196)
exp	0.710*** (−0.0193)	0.941*** (−0.0092)
firmsize	0.082*** (−0.0192)	0.189*** (−0.0084)
firmage	0.954 (0.5987)	0.894 (0.6249)
Constant	−3.079*** (−0.0105)	−2.427*** (−0.0047)
Observations	1,578,797	1,578,797
R-squred	0.0615	0.0915

Note: Robust standard errors in parentheses; ***p < 0.01, **p < 0.05, *p < 0.1