Table 4 Estimation of probit models on the funding propensity as PI or Co-PI.

	1. articles			2. RCR			3. FCR			4. altmetrics
	(All Fields)			(Life Sciences)			(All Fields)			(All since 2010)
	Coef.	SE	P > ∣z∣	Coef.	SE	P > ∣z∣	Coef.	SE	P > ∣z∣	Coef.	SE	P > ∣z∣
ln(pre-sample articles)	0.053	0.012	<0.001	0.050	0.020	0.012	0.029	0.014	0.038	−0.013	0.018	0.484
ln(pre-sample preprints)	0.006	0.028	0.840	0.164	0.159	0.300	−0.003	0.030	0.930	0.060	0.037	0.100
ln(pre-sample av. citations)	0.034	0.008	<0.001							0.067	0.013	<0.001
ln(pre-sample RCR)				0.051	0.021	0.013
ln(pre-sample FCR)							0.040	0.009	<0.001
ln(pre-sample altmetrics)										−0.089	0.012	<0.001
Eval.score	0.815	0.007	<0.001	0.760	0.010	<0.001	0.798	0.008	<0.001	0.800	0.010	<0.001
Male researcher	0.120	0.016	<0.001	0.135	0.027	<0.001	0.111	0.019	<0.001	0.102	0.026	<0.001
ln(age)	1.703	0.038	<0.001	2.041	0.068	<0.001	1.891	0.045	<0.001	1.972	0.062	<0.001
ETH Domain	0.066	0.020	<0.001	0.156	0.041	<0.001	0.047	0.023	0.038	0.059	0.030	0.050
UAS/UTE/Other	−0.271	0.018	<0.001	−0.243	0.033	<0.001	−0.294	0.024	<0.001	−0.268	0.032	<0.001
Unclassified	−0.521	0.021	<0.001	−0.406	0.034	<0.001	−0.580	0.023	<0.001	−0.635	0.029	<0.001
STEM	−0.138	0.019	<0.001				−0.098	0.021	<0.001	−0.118	0.027	<0.001
SSH	0.019	0.019	0.307				0.053	0.023	0.023	0.114	0.033	<0.001
JS Inst. types	889.44		<0.001	212.92		<0.001	802.72		<0.001	890.49		<0.001
JS fields	71.42		<0.001				39.26		<0.001	72.62		<0.001
JS years	1,469.08		<0.001	797.32		<0.001	11,95.22		<0.001	1,551.61		<0.001
# observations	63,680			22,999			48,729			30,360
Log pseudolikelihood	−24,863.80			−9,369.45			−18,226.64			−10,896.19
Pseudo R²	0.361			0.341			0.363			0.367

The models contain a constant and year dummies (not reported). JS stands for chi²-test of joint significance of the respective factor. For the institution type University serves as reference category, for the fields it is Life Sciences. The specification for preprints is identical to model 1, but for observations since the year 2010 only (n = 52,410 pseudo-R² = 38.8).

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