Article · 6 min read

Harvard Business School Professor Says 65% of Startups Fail for One Reason

John Boitnott · Entrepreneur Free Beginner

This is the citable source for the claim at the heart of your answer: Noam Wasserman's research across 10,000+ founders found 65% of high-potential startups fail from co-founder conflict, not market failure. It is the hard number that justifies refusing to rush a pairing, and it names the specific fault lines (leadership, money, credit, blame) so a founder knows what the paid trial and the 50 questions are actually stress-testing for.

  • 65% of high-potential startup failures trace to co-founder conflict, the relationship is the biggest single risk you control
  • Teams of friends, family, and couples fail most because they dodge hard conversations to protect feelings, so surface the money and control talks early
  • The predictable conflict zones are leadership, equity, strategy, and credit, settle these in writing before you commit, not after
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The question it answers

  1. Should I quit as a solo founder or wait until I have a co-founder locked in?

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