Institute for Family Business explores financial market bubbles by breaking down how they form, persist, and ultimately unwind across history. It challenges the idea that bubbles are rare, suggesting they occur more frequently and can be rational at times, with valuations deviating sharply from fundamentals before correcting.
Bubble, Bubble, Toil and Trouble
Research Affiliates
Rob Arnott
Research
10 Pages
Key Takeaways
Bubbles More Common: The paper identifies over 30 distinct bubbles since 1900, implying episodes of extreme mispricing occur roughly every 3–5 years across global markets.
Rational Behavior Exists: Investors may knowingly participate in bubbles, as assets can rise 50%+ beyond fundamental value before peaking, rewarding short-term positioning despite long-term risks.
Aftermath Drives Returns: Post-bubble drawdowns often exceed 40%, yet recovery periods can deliver annualized returns above 15% for patient investors re-entering after the collapse.
Join our newsletter to have all of this content + Exclusive Newsletter Bonus Content delivered to your inbox every week
