Table 6 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 6722 unique biomedical researchers assigned to the discipline medicine with at least 100 publications
From: Scientific rewards for biomedical specialization are large and persistent
(1) | (2) | (3) | (4) | |
|---|---|---|---|---|
Specialization | 0.275*** | 0.365*** | 0.478*** | 0.636*** |
(0.007) | (0.010) | (0.013) | (0.024) | |
Specialization × career age | − 0.006*** | − 0.012*** | ||
(0.0005) | (0.001) | |||
Specialization × papers | − 0.064*** | − 0.068*** | ||
(0.003) | (0.007) | |||
Career age × papers | 0.011*** | |||
(0.001) | ||||
Specialization × career age × papers | 0.001 | |||
(0.0004) | ||||
Observations | 48,433 | 48,433 | 48,433 | 48,433 |
R 2 | 0.261 | 0.264 | 0.267 | 0.270 |
Adjusted R2 | 0.141 | 0.144 | 0.148 | 0.151 |
Control variables | Yes | Yes | Yes | Yes |
Year fixed-effects | Yes | Yes | Yes | Yes |
Researcher fixed-effects | Yes | Yes | Yes | Yes |