Table 7 Fixed-effects panel regression results. Dependent variable is the log number of citations per paper, and the “specialization” variable is standardized. Standard errors are in parentheses. All control variables described in the main manuscript are included. Based on 4825 unique biomedical researchers assigned to the discipline medicine with between 75 and 99 career publications

Specialization

0.292***

0.343***

0.411***

0.572***

(0.010)

(0.013)

(0.018)

(0.034)

Specialization × career age

− 0.004***

− 0.012***

(0.001)

(0.002)

Specialization × papers

− 0.044***

− 0.065***

(0.006)

(0.011)

Career age × papers

0.010***

(0.002)

Specialization × career age × papers

0.002

(0.001)

Observations

30,440

30,440

30,440

30,440

R ²

0.217

0.218

0.219

0.220

Adjusted R²

0.068

0.069

0.070

0.072

Control variables

Yes

Yes

Yes

Yes

Year fixed-effects

Yes

Yes

Yes

Yes

Researcher fixed-effects

Yes

Yes

Yes

Yes