Geography Reference
In-Depth Information
Table 15 . 1
Descriptive statistics and correlations
Mean
SD
2
3
4
5
6
7
8
9
10
11
12
1. k
0.49
0.30
0.03
−0.02
−0.07
.00
−.11
.10
.07
−.03
−.05
−.29
−.35
2. Close collaboration
0.07
0.25
−0.21
0.14
0.30
0.17
0.00
0.08
0.01
0.01
−0.01
0.00
3. Far collaboration
0.23
0.42
−0.06
0.01
0.01
0.12
0.15
−0.01
0.03
0.02
0.05
4. Organizational proximity
0.10
0.33
−0.09
−0.03
−0.06
−0.07
0.02
−0.04
−0.02
−0.03
5. Geographic proximity
−6.50
1.96
0.20
0.00
0.05
0.05
0.01
0.00
0.01
6. Same class
0.26
0.44
0.12
0.08
0.04
0.02
−0.11
−0.01
7. Activity control
1.25
0.42
0.42
0.01
0.06
−0.02
0.08
8. Recent technology
3.97
0.62
−0.14
0.09
0.05
0.09
9. Backward patent
citations
9.83
8.88
0.13
0.07
0.12
10. Backward non-patent
citations
1.46
4.24
0.06
0.10
11. Number of classes
1.85
0.97
0.49
12. Number of subclasses
4.53
3.43
Search WWH ::




Custom Search