Without the vce option:
Code:
Negative binomial regression Number of obs = 462,187 LR chi2(501) = 39266.96 Dispersion = mean Prob > chi2 = 0.0000 Log likelihood = -851639.86 Pseudo R2 = 0.0225 ----------------------------------------------------------------------------------- teamsize | Coef. Std. Err. z P>|z| [95% Conf. Interval] ------------------+---------------------------------------------------------------- internetdummy | -.0138526 .0021754 -6.37 0.000 -.0181162 -.009589 invt_network_size | .0094635 .0000565 167.59 0.000 .0093528 .0095742
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