|
Panel A
|
All workers
|
|---|
|
Dependent variable
|
Skill relatedness
|
Skill similarity
|
|---|
|
Independent variables
|
|
Share of contacts globala
|
− 0.188*
|
− 0.114
|
− 0.0255
|
0.293
|
| |
(0.102)
|
(0.103)
|
(0.0195)
|
(0.362)
|
|
Share of contacts locala
|
0.209**
|
0.173*
|
0.0371*
|
0.517*
|
| |
(0.104)
|
(0.0964)
|
(0.0198)
|
(0.308)
|
|
N of connectionsb
|
− 0.283***
|
− 0.0296***
|
− 0.0056***
|
− 0.0056
|
| |
(0.0097)
|
(0.0097)
|
(0.0019)
|
(0.0345)
|
|
Constant
|
0.147**
|
0.00564
|
0.0665***
|
0.418
|
| |
(0.0646)
|
(0.0838)
|
(0.0121)
|
(0.266)
|
|
Controlsc
|
No
|
Yes
|
No
|
Yes
|
|
Random effects
|
|
Individual (1)
|
0.000996***
|
0.0177***
|
0.0246***
|
0.0337
|
| |
(0.000162)
|
(0.00361)
|
(0.00443)
|
(0.0346)
|
|
Individual (2)
|
0.00164***
|
0.0642***
|
0.0516***
|
0.0845**
|
| |
(0.000204)
|
(0.00862)
|
(0.00687)
|
(0.0403)
|
|
Dyad
|
0.00321***
|
0.237***
|
0.233***
|
0.466***
|
| |
(5.74e−05)
|
(0.00454)
|
(0.00415)
|
(0.0473)
|
|
Observations (dyads)
|
6,493
|
5,663
|
6,493
|
5,663
|
|
Panel B
|
Co-workers
|
|---|
|
Dependent variable
|
Skill relatedness
|
Skill similarity
|
|---|
|
Independent variables
|
|
Share of contacts globala
|
0.338
|
− 0.114
|
− 0.0135
|
0.293
|
| |
(0.389)
|
(0.103)
|
(0.0684)
|
(0.362)
|
|
Share of contacts locala
|
0.649*
|
0.173*
|
0.0993
|
0.517*
|
| |
(0.350)
|
(0.0964)
|
(0.0647)
|
(0.308)
|
|
N of connectionsb
|
0.0257
|
− 0.0296***
|
− 0.0058
|
− 0.0056
|
| |
(0.0373)
|
(0.0097)
|
(0.0064)
|
(0.0345)
|
|
Constant
|
0.236
|
0.00564
|
0.0930**
|
0.418
|
| |
(0.210)
|
(0.0838)
|
(0.0384)
|
(0.266)
|
|
Controlsc
|
No
|
Yes
|
No
|
Yes
|
|
Random effects
|
|
Individual (1)
|
0.0907**
|
0.0177***
|
0.00548***
|
0.0337
|
| |
(0.0444)
|
(0.00361)
|
(0.00145)
|
(0.0346)
|
|
Individual (2)
|
0.0716**
|
0.0642***
|
0.00199***
|
0.0845**
|
| |
(0.0353)
|
(0.00862)
|
(0.000718)
|
(0.0403)
|
|
Dyad
|
0.464***
|
0.237***
|
0.00618***
|
0.466***
|
| |
(0.0458)
|
(0.00454)
|
(0.000640)
|
(0.0473)
|
|
Observations (dyads)
|
6493
|
5663
|
310
|
303
|
- Coefficients (standard errors in parentheses) of linear probability models with clustered standard errors
- ***p ≤ 0.01; **p ≤ 0.05, *p ≤ 0.1
- aReference: national contacts
- bScale of N. of connections is 100 links
- cControls: work experience (years), type of job (junior professional, senior professional, or manager), sex and firm size
