Diffusion and Contagion

Dad Joke

Interviewer: “Where do you see yourself in 5 years?”

Me: “Listening. I would say listening is my biggest weakness.”

Housekeeping

  • Self-assessment reflections due today
    • In-person feedback; sign up for spot on my calendar
  • Wisdom or Madness of Crowds simulation + R on Thursday

Upcoming Assignments

  • Exam
    • Submit two multiple choice or short answer questions by next week
  • Visualization Challenge due next week

Example questions

  • What is a “multiplex” (or multidimensional) network?
  • A network where there are multiple types of nodes
  • A network with high centralization
  • A network with a high clustering coefficient
  • A network with multiple types of edges
  • Give an example of how social capital can be exchanged for economic capital.

Plan for today

  • Diffusion and contagion review
  • Discussion questions

Review Questions

  • What are some things that are diffused through a social network?
  • What is the difference between simple contagion and complex contagion?

Simple Contagion

Complex Contagion

Review Questions

  • What is an example of simple contagion?
  • What is an example of something that spreads via complex contagion?
  • What was the argument of the “Special People” chapter?

Discussion Questions

Wisdom / Madness of Crowds

# A tibble: 1 × 1
  median
   <dbl>
1   1.07