1 What is centrality in a network context? What is the difference between degree centrality andcloseness centrality? When might we want to use a measure like closeness centrality to discuss someonesposition in a social network instead of degree centrality? What about transitivity? When might wecare more about transitivity than we do about centrality as researchers?
2. What is contagion in a network context? Describe one example of network contagion in your own life.In your example, identify the social network (a network of classmates? a family? a workplace?), thenature of the connection between individuals (do you exchange information? affection? money-labor?),the directionality, and the thing spreading through the network.
3. Much of the research with which we have engaged so far is now over a decade old (if not older). Whatmore recent changes social changes, technological innovations, political phenomena, etc. may havechanged some of the conventional wisdom, findings, or scientific understandings of social networkssince this research was carried out? Please describe at least one change and walk us through what theconsequences of that change might be on current and future social network scholarship.

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