The document discusses economic insights from LinkedIn's professional network as presented by Dr. June Andrews on February 20, 2015. It examines industry migration patterns, growth in C-suite positions, and the likelihood of knowing future colleagues based on the size and strength of one's professional network. Specifically, it finds that construction workers frequently migrate between real estate, oil/mining industries. It also finds that the ratio of C-suite executives to company employees peaks at around 3,000 employees, and investing in one's network up to 45 connections maximizes the chance of knowing future work colleagues.

1. Economic Insights
From LinkedIn’s Professional Network
Dr. June Andrews
February 20, 2015
June Andrews Economic Insights February 20, 2015 1 / 30

2. Professional Social Graph
June Andrews Economic Insights February 20, 2015 2 / 30

3. Explore Economic Insights
1 Industry Migration
2 C-Suite Growth
3 Future Colleagues
June Andrews Economic Insights February 20, 2015 3 / 30

4. Significant Relations with Realtors
Figure : Period of dramatic growth for real estate
June Andrews Economic Insights February 20, 2015 4 / 30

5. Significant Relations with Realtors
Figure : Period of economic change
June Andrews Economic Insights February 20, 2015 5 / 30

6. Significant Relations with Construction
Figure : Symmetric relationship between real estate and construction.
Construction workers migrate between real estate and oil and mining.
June Andrews Economic Insights February 20, 2015 6 / 30

7. Industry Migration - Mechanics
Figure : Construction workers connecting with Oil & Mining over Real Estate
June Andrews Economic Insights February 20, 2015 7 / 30

8. Industry Migration - Mechanics
How?
Is migration prompted by influential people?
Is migration independent pockets of movement?
June Andrews Economic Insights February 20, 2015 8 / 30

9. Industry Migration - Cascades
Figure : Median is 4 neighbors migrated before conversion
June Andrews Economic Insights February 20, 2015 9 / 30

10. Industry Migration - Mechanics
Figure : Size of bubble is proportional to size of complete cascade.
How?
Migration is largely independent, with some cascades.
June Andrews Economic Insights February 20, 2015 10 / 30

11. Explore Economic Insights
1 Industry Migration
2 C-Suite Growth
3 Future Colleagues
June Andrews Economic Insights February 20, 2015 11 / 30

12. C-Suite Growth
Figure : C-Suite size to company size. Two distinct periods of growth.
June Andrews Economic Insights February 20, 2015 12 / 30

13. C-Suite Growth
Figure : C-Suite approximate efficiency. Maximized at ≈ 3k employees.
June Andrews Economic Insights February 20, 2015 13 / 30

14. C-Suite Growth
Figure : C-Suite approximate efficiency. Maximized at ≈ 3k employees.
June Andrews Economic Insights February 20, 2015 14 / 30

15. C-Suite Growth
Implications
Regardless of management philosophy, ratio of CXO’s to
employees reaches a maximum
Coincidentally, Stanford’s McCaw Hall’s capacity is 942 people.
June Andrews Economic Insights February 20, 2015 15 / 30

16. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

17. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

18. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

19. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

20. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

21. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

22. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

23. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

24. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

25. C-Suite Growth Order of Growth
June Andrews Economic Insights February 20, 2015 16 / 30

26. C-Suite Growth Order of Growth 2nd
C-Suite
June Andrews Economic Insights February 20, 2015 17 / 30

27. C-Suite Growth Order of Growth 2nd
C-Suite
June Andrews Economic Insights February 20, 2015 17 / 30

28. C-Suite Growth Order of Growth 2nd
C-Suite
June Andrews Economic Insights February 20, 2015 17 / 30

29. C-Suite Growth Order of Growth 2nd
C-Suite
June Andrews Economic Insights February 20, 2015 17 / 30

30. C-Suite Growth Order of Growth 2nd
C-Suite
June Andrews Economic Insights February 20, 2015 17 / 30

31. C-Suite Gender Ratio
Figure : Women’s positions in C-Suites grow faster than the C-Suite.
Outliers are caused by Armed Security Organizations.
June Andrews Economic Insights February 20, 2015 18 / 30

32. CEO Gender Ratio
Figure : Growth trend for Women in the C-Suite holds for CEOs.
Outliers are caused by Armed Security Companies.
June Andrews Economic Insights February 20, 2015 19 / 30

33. CEO Gender Ratio
Figure : Overlay of CEO ratio with C-Suite ratio
June Andrews Economic Insights February 20, 2015 20 / 30

34. C-Suite Endorsements
Figure : Complete picture of endorsements in the c-suite
June Andrews Economic Insights February 20, 2015 21 / 30

35. C-Suite Endorsements
Figure : In small companies women in the c-suite are highly endorsed
June Andrews Economic Insights February 20, 2015 22 / 30

36. C-Suite Endorsements
Figure : Improve by comparison to who?
June Andrews Economic Insights February 20, 2015 23 / 30

37. Explore Economic Insights
1 Industry Migration
2 C-Suite Growth
3 Future Colleagues
June Andrews Economic Insights February 20, 2015 24 / 30

38. Prior Research Weak Tie Roles
How to Get a Job [Granovetter]
A quarter of people receive jobs through their network.
Four Degrees of Separation [Backstrom et al]
Weak Ties are critical to traversal of online social networks
June Andrews Economic Insights February 20, 2015 25 / 30

39. Probability Know Future Colleagues
Figure : The power of your network is maximized at ≈ 45
June Andrews Economic Insights February 20, 2015 26 / 30

40. Probability Know Future Colleagues
Figure : Increasing your network size, increases your network power.
Dunbar’s Number is the number of active social relationships.
June Andrews Economic Insights February 20, 2015 27 / 30

41. Weak Tie Roles
Median Age of Connection to Company before Joining
15 Months
Network
Outside studies show referrals result in higher job satisfaction rates.
Recommendation is invest in networking far in advance of job changes.
June Andrews Economic Insights February 20, 2015 28 / 30

42. Thankyou!
Thank you Sara Vera & Mathieu Bastian
juneandrews.com
June Andrews Economic Insights February 20, 2015 29 / 30

43. We’re Hiring
Drive the Data Driven Decision Engine!
June Andrews Economic Insights February 20, 2015 30 / 30