Dependent Variable

R&D

ln(1 + Apply)

Data range of Degree

[0, 0.6461]

[0, 0.6461]

Significance of Degree

0.0196***

0.8017***

(0.0042)

(0.1992)

Significance of Degree²

−0.0205***

−0.8737**

(0.0075)

(0.3807)

Slope at minimum value of Degree

0.0196

0.8017

[0.000]

[0.000]

Slope at maximum value of Degree

−0.0069

−0.3275

[0.121]

[0.150]

Extreme point

0.4774

0.4587

95% Confidence interval—Fieller method

[0.3715, 1.0234]

[0.3403, 1.7441]