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Unformatted text preview: Introduction to Sociology Part Part III: The Architecture of Society
Lecture 21: Small Worlds
Wednesday, April 29 Random Random Network Model Clustered Clustered Network Model Small world paradox: How can a highly clustered society also have short average path lengths between strangers? WattsWatts-Strogatz Model Hub Hub Model The The Small World Problem
S. Milgram - Is there a global social network through which everyone can global “reach,” directly or indirectly, everyone else?
- If so, how “close” to each other are randomly selected people? - Milgram asked ≈ 300 individuals in Nebraska and Boston to get a package to a single target person in Massachusetts (whom (whom they did not know) through acquaintance chains through - The packages that reached the target did so through an average of five intermediaries (i.e., six steps) - 48% of the completed chains passed through one of the same three people (Milgram refers to these as “penultimate (Milgram links” and “stars” – but they are really just hubs) hubs Origins Origins of Small Worlds Division of labor increases Population growth growth Urbanization Homophily decreases Connectedness among among clusters Contact with strangers increases ...
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- Spring '07