80,000 Hours Podcast

How much does a vote matter? (Article)

Oct 29, 2020
Explore the surprising impact of individual votes in shaping elections. Discover how your choice could influence global events, from elections to potential catastrophes. Delve into the complexities of voting behavior and the importance of being an informed voter in today's polarized landscape. Learn why rallying others to vote might sometimes be more effective than voting yourself. Finally, consider the altruistic implications of your electoral decisions and how campaign contributions can sway outcomes.
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INSIGHT

Vote Impact Modeling

  • Modeling helps estimate vote impact, as historical records are insufficient.
  • Statistical modeling uses polling data and election results to determine probability distributions.
INSIGHT

Factors Influencing Vote Impact

  • Your vote's impact is inversely proportional to the square root of total voters.
  • Statisticians use this, polling data, and past results to model election outcomes.
ANECDOTE

Gelman's Election Modeling

  • Andrew Gelman modeled US presidential elections, finding varying vote impacts.
  • Safe states like California have near-zero impact, while swing states in close elections can reach 1 in 3 million.
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