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Friends with Benefits: Social Capital and Household Financial Behavior

Author

Listed:
  • Brad Cannon
  • David Hirshleifer
  • Joshua Thornton

Abstract

Using friendship data from Facebook, we study the effects of three aspects of social capital on household financial behavior. We find that the most important measure of social capital in explaining stock market and saving participation is Economic Connectedness, defined as the fraction of one’s social network with high socioeconomic status. One standard-deviation greater Economic Connectedness is associated with 2.9% greater stock market participation and 5.0% greater saving participation. Compared to Cohesiveness or Civic Engagement, Economic Connectedness explains more than 6 times the variation in stock market participation and more than 4 times the variation in saving participation. Using data on nonlocal friendships, we provide evidence supporting a causal link between household financial behavior and the income of one's friends. Furthermore, we provide evidence that greater opportunities for social interaction with wealthy individuals is associated with increased stock market and saving participation.

Suggested Citation

  • Brad Cannon & David Hirshleifer & Joshua Thornton, 2024. "Friends with Benefits: Social Capital and Household Financial Behavior," NBER Working Papers 32186, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:32186
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    More about this item

    JEL classification:

    • D14 - Microeconomics - - Household Behavior - - - Household Saving; Personal Finance
    • D15 - Microeconomics - - Household Behavior - - - Intertemporal Household Choice; Life Cycle Models and Saving
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • G4 - Financial Economics - - Behavioral Finance
    • G40 - Financial Economics - - Behavioral Finance - - - General
    • G41 - Financial Economics - - Behavioral Finance - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making in Financial Markets
    • G5 - Financial Economics - - Household Finance
    • G50 - Financial Economics - - Household Finance - - - General
    • G51 - Financial Economics - - Household Finance - - - Household Savings, Borrowing, Debt, and Wealth
    • I3 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty
    • I30 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - General
    • I31 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - General Welfare, Well-Being
    • I38 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - Government Programs; Provision and Effects of Welfare Programs
    • O16 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Financial Markets; Saving and Capital Investment; Corporate Finance and Governance

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