弱いつながりは転職に有効なのか？ / Weak Ties and Job Change

■イベント
conference, on computer science for enterprise
https://ccse.jp/2019/

■登壇概要
タイトル：弱いつながりは転職に有効なのか？

登壇者：DSOC R&Dグループ 西田貴紀

▼Sansan DSOC
https://sansan-dsoc.com/

Transcript

1.    
   Dynamic Network Signatures of Labor Flows: Evidence from a Large Business Social Network Takanori Nishida (Sansan Inc., Tokyo, Japan) Lav R. Varshney (University of Illinois at Urbana-Champaign) Yoshiki Ishikawa (Habitech, Inc., Tokyo, Japan)
3. Motivation   
      ( )(
4. Strength of Weak Ties Hypothesis
5. Bird’s-Eye View Static Dynamic Online Offline (Face to Face)  
    
   
6.              
   
7. Data Visualization ~Dawn of Innovation~ 0 1 2 0 2
8. Data Eight  #'*/
   2015,1"2017,12" )3 /%&. &.Eight21 0 !( + - $1
9. User Profile 
    
   
10. Longitudinal Dataset (Unbalanced Panel Data) 1st wave 2nd wave 3rd wave Jul 2015 Jan 2016 Jul 2016 Jan 2017 Jul 2017 6 months 6 months T T-1 T-2 T T-1 T-2 6 months T T-1 T-2 6 months
    
    
    
11. Empirical Definition of Weak ties and Strong Ties  T-2 T-1 T 
     =Δ Clustering coefficient = # of New Bridging Ties 
     Ties in same community Bridging Ties
13. 
     
    
14. Empirical Model   ̈ "#$ = &' ̈ (#$)* /$), + ̈ .#$ /ℎ121 ̈ 345 = 345 − 7 34 (within transformation),8 34 = 1/: ∑4<= > 345
     W W W - - W W 1 2T : ; ( ) W
15. Results ) *- 10 .) *- T-1 T T-2 ( R-squared:0.114 Num. obs.: 417,428 - Standard errors in parentheses - ***p < 0.001, **p < 0.01, *p < 0.05 ) ( ( 0 -
16. Discussion 
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