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PhD 3743: Strength of Weak Ties, 10/28/2017 (1. Strength of Ties (Amount…
PhD 3743: Strength of Weak Ties, 10/28/2017
1. Strength of Ties
Amount of time
Emotional intensity
Intimacy
Reciprocal services
2. Weak Ties in Diffusion Process
Forbidden triad, Fig.1, no B-C relationship
Diffusion leads to B-C weak tie
Are innovators central or marginal?
Pamphlet forwarded from white to negro acquaintance, chain complete; if negro "friend" then only 26% completed
3. Weak Ties in Egocentric Networks
Close-knit vs. Loose-knit = network density
Strong ties = dense, Weak ties = less dense
Jobs found through contacts
Small degrees of separation, 84.4% w/in 1 degree
4. Weak Ties and Community Organization
Diffusion and mass communication only acted upon if transmitted through personal ties
Trust in leadership based on personal intermediaries
Clique of strong ties leads to isolation within community
Example: Boston's West End Italian community loss at "urban renewal"
5. Micro and Macro Network Models
Weak ties link to different groups
Interpersonal choices tend to be transitive
Consistent with some child development studies