“hopes of getting something in return” : Personal interview with Dan Weinstein (January 26, 2012).
“How can I help” : Guy Kawasaki interview with Warren Cass, accessed May 14, 2012, www.youtube.com/watch?
feature=player_embedded&v=_OsWvp2X8gk.
“weak ties” : Mark Granovetter, “The Strength of Weak Ties: A Network Theory Revisited,” Sociological Theory 1 (1983): 201–233.
pronoia : Fred H. Goldner, “Pronoia,” Social Problems 30 (1982): 82–91; and personal interview with Brian Little (January 24, 2011).
dormant ties : Daniel Z. Levin, Jorge Walter, and J. Keith Murnighan, “Dormant Ties: The Value of Reconnecting,” Organization Science 22 (2011): 923–939; and “The Power of Reconnection: How Dormant Ties Can Surprise You,” MIT Sloan Management Review 52 (2011): 45–50.
energy through networks : Rob Cross, Wayne Baker, and Andrew Parker, “What Creates Energy in Organizations?” MIT Sloan Management Review 44 (2003): 51–56.
“someone else will do something for me down the road” : Robert Putnam, Bowling Alone: The Collapse and Revival of American Community (New York: Simon & Schuster, 2000), 21.
giving can be contagious : James H. Fowler and Nicholas A. Christakis, “Cooperative Behavior Cascades in Human Social
Networks,” PNAS 107 (2010): 5334–5338.
consistent givers : J. Mark Weber and J. Keith Murnighan, “Suckers or Saviors? Consistent Contributors in Social Dilemmas,” Journal of Personality and Social Psychology 95 (2008) 1340–1353.
professional engineers : Francis J. Flynn, “How Much Should I Give and How Often? The Effects of Generosity and Frequency of
Favor Exchange on Social Status and Productivity,” Academy of Management Journal 46 (2003): 539–553.
Chapter 3: The Ripple Effect
