Applied Network Science

Table 2 Summary statistics - Erasmus network - 2008 and 2013

From: Gender bias in the Erasmus network of universities

	2008			2013
	all	M	F	all	M	F
Active Universities	2290	2117	2209	2658	2444	2549
sending	2056	1893	1984	2356	2172	2233
receiving	2090	1873	1980	2419	2158	2295
University partnerships	62221			76446
Active connections	83118	35558	47560	103160	44276	58863
Isolates	858	1031	939	490	704	599
Density	0.006	0.005	0.004	0.008	0.006	0.004
Degree	0.123	0.080	0.106	0.135	0.089	0.117
out	0.119	0.087	0.096	0.139	0.096	0.115
in	0.127	0.084	0.115	0.131	0.082	0.119
Closeness	0.00046	0.00043	0.00044	0.00054	0.00049	0.00051
out	0.00022	0.00018	0.0002	0.00022	0.00021	0.00024
in	0.0002	0.0002	0.0002	0.00022	0.00023	0.00022
Assortativity	-0.0068	-0.0125	0.0029	0.0086	0.0087	0.0212
Reciprocity	0.45	0.32	0.39	0.47	0.34	0.41
	GRA01	PRA07	GRA01	GRA01	GRA01	GRA01
	[395]	[286]	[318]	[463]	[315]	[380]
	MAD03	GRA01	MAD03	MAD03	MAD03	MAD03
	[354]	[274]	[304]	[413]	[279]	[351]
	BOL01	MAD03	WAR01	BOL01	BOL01	BOL01
Top-5 sending universities	[305]	[228]	[256]	[367]	[256]	[304]
	PRA07	BOL01	BOL01	VAL01	VAL01	VAL01
	[287]	[215]	[238]	[348]	[254]	[284]
	VAL02	SEV01	LJU01	LJU01	BAR03	LJU01
	[286]	[215]	[222]	[343]	[223]	[274]
	GRA01	VAL02	GRA01	GRA01	GRA01	GRA01
	[420]	[277]	[377]	[437]	[273]	[392]
	VAL02	GRA01	MAD03	MAD03	PRA07	MAD03
	[371]	[249]	[316]	[382]	[236]	[343]
	MAD03	MAD03	BOL01	BOL01	VAL02	BOL01
Top-5 receiving universities	[351]	[212]	[300]	[366]	[228]	[325]
	BOL01	VAL01	VAL01	VAL02	MAD03	VAL01
	[339]	[211]	[295]	[332]	[226]	[298]
	VAL01	LUN01	VAL02	LJU01	BOL01	BAR03
	[328]	[198]	[290]	[329]	[218]	[273]

Note: See Wasserman and Faust (1994) for the definition of the statistics used. M stands for male; F stands for female. Degree stands for Degree centralization (standardized); Closeness stands for Closeness centralization (standardized); Active con- nections includes student flows in different fields of study; Erasmus university codes have been shortened for visualization purpose: BAR03 = BARCELO03; BOL01 = BOLOGNA01; GRA01 = GRANADA01; LJU01 = LJUBLJA01; LUN01 = LUND01; MAD03 = MADRID03; PRA07 = PRAHA07; ROM01 = ROMA01; SEV01 = SEVILLA01; VAL01 = VALENCI01; VAL02 = VALENCI02; WAR01 = WARSZAW01. Squared parentheses contain the degree value. The Assortativity score is [-1,1]; the Reciprocity score is in percentage points

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