Money & Finance › Bubbles, crashes & crises
Bubbles, crashes and panics: how crises unfold
· Concept
Mainstream viewMost economists and practitioners agree.
The recurring pattern of booms and crashes: easy credit and leverage push prices past fundamentals until a shock sets off forced selling and panic.
See it on the Money & Finance map →How it works
Economist Charles Kindleberger, building on Hyman Minsky, described stages: a new opportunity (canals, railroads, the internet, AI) draws money; borrowing fuels rising prices; euphoria pulls in newcomers; insiders sell; a shock reveals losses; then panic and fire sales as everyone wants cash at once. Leverage turns a price drop into a crisis because lenders demand repayment. Minsky's insight: long calm encourages riskier borrowing, so stability breeds instability. Defenses include deposit insurance, central-bank emergency lending and capital rules.
Why it matters
Panics, not ordinary downturns, cause the deepest recessions; knowing the pattern helps spot leverage building up, in markets and on one's own balance sheet.
Think of it like
Like an overbuilt submarket financed with short-term construction loans: when rents dip, lenders call, owners dump buildings, and prices overshoot downward.
Facts, rules and data
Kindleberger's Manias, Panics, and Crashes (1978); Carmen Reinhart and Kenneth Rogoff's This Time Is Different (2009), cataloging eight centuries of crises; Walter Bagehot's Lombard Street (1873) on emergency lending.
Debates and risks
Whether bubbles can be spotted reliably before they burst, and whether central banks should lean against them, divides economists such as Eugene Fama and Robert Shiller.
Inside this (12)
- Panic of 1907 and J.P. Morgan's rescue
- Asian financial crisis and Korea's IMF bailout (1997)
- Dot-com bubble and bust (2000)
- COVID-19 crash and rescue (2020)
- Silicon Valley Bank collapse (2023)
- Tulip mania (1637): bubble or legend?
- South Sea Bubble (1720)
- Black Monday crash (1987)
- Savings and loan crisis (1980s–90s)
- Long-Term Capital Management collapse (1998)
- Japan's bubble and 'lost decades' (1990–)
- European debt crisis (2010–12)
Connections (5)
▸Behavioral finance: how investors really behave explains herd behavior in Bubbles, crashes and panics: how crises unfoldMainstream view
The connection
Behavioral finance explains why bubbles and panics happen even among smart investors. People extrapolate recent gains, copy the crowd, and feel losses about twice as strongly as gains (prospect theory). In booms that pulls in latecomers; in a crash, loss aversion and fear of being last out turn selling into a stampede.
When and why
Daniel Kahneman and Amos Tversky's prospect theory (1979); Robert Shiller's work on stock volatility (1981) and Irrational Exuberance (2000 on dot-coms; 2005 edition adding housing).
How solid is the link?
Lab experiments, investor surveys and fund-flow data show buying after rises and selling after falls; Kahneman (2002) and Shiller (2013) won Nobel prizes.
Debates and risks
Efficient-market defenders argue many 'bubbles' look irrational only in hindsight; how much herding, versus leverage, drives panics is still argued.
▸Austrian school (Mises, Hayek) blames cheap credit for Bubbles, crashes and panics: how crises unfoldExperts disagree
The connection
Austrians argue bubbles start when central banks hold rates too low: cheap credit funds too many long-term projects, such as housing or speculative ventures, that real savings cannot sustain. When rates rise or credit tightens, the projects fail and the bust follows. Bailouts and rate cuts, in their view, only plant the next bubble.
When and why
Mises (1912) and Hayek (Prices and Production, 1931) in Vienna and London; revived after the 2003–06 housing boom and the easy money of 2020–21.
How solid is the link?
Credit booms before crises are well documented, for example by Moritz Schularick and Alan Taylor (2012); the specific Austrian claim that low rates cause them is less established.
Debates and risks
Whether low rates or other forces, such as weak lending standards, global savings flows or fraud, drove bubbles like 2006 housing is debated.
▸Tulip mania (1637): bubble or legend? is the legendary first case of Bubbles, crashes and panics: how crises unfoldExperts disagree
The connection
Mackay's 1841 account made tulip mania the founding legend of bubbles: rapid price rises, ordinary people trading bulbs they never saw, and a sudden crash. That story became the template for describing later manias, from railways to dot-coms to crypto, even though archival research shows its real economic impact was small.
When and why
Dutch Republic, winter 1636–37, centered on Haarlem; the legend took off with Charles Mackay in London in 1841.
How solid is the link?
Price records show a real spike and crash in rare bulbs; historians such as Anne Goldgar question the claims of widespread ruin.
Debates and risks
Whether it counts as a true bubble at all, rather than a short contract dispute in a luxury market, is genuinely disputed.
▸South Sea Bubble (1720) is an early example of Bubbles, crashes and panics: how crises unfoldFact, law or data
The connection
The South Sea episode shows the full crisis sequence: a novel financial scheme, insider promotion, easy credit to buy shares, copycat ventures, a peak, then forced selling as loans and installment payments came due. The Sword Blade Company, the South Sea Company's banker, failed, spreading the damage beyond shareholders.
When and why
London, 1720; the crash ran from late summer through autumn, coinciding with the collapse of John Law's scheme in Paris.
How we know
Share-price series, the 1721 parliamentary inquiry and records of failed banks such as the Sword Blade Company document the sequence.
Debates and risks
How much the crash damaged Britain's wider economy, which recovered fairly quickly, is debated by economic historians.
▸Ponzi schemes: paying old investors with new money share the boom-bust dynamics of Bubbles, crashes and panics: how crises unfoldMainstream view
The connection
A Ponzi scheme pays early investors with new investors' money, so it must keep growing. Like a bubble, it runs on rising confidence and fails when inflows slow and many want out at once, a run in miniature. Busts often expose them: Madoff's fraud surfaced in December 2008 as investors scrambled for cash.
When and why
Charles Ponzi's Boston scheme collapsed in 1920; Bernard Madoff's, about $65 billion on paper, unraveled during the 2008 crisis.
How solid is the link?
Court records in both cases show collapse once withdrawals outran new deposits; Madoff faced about $7 billion in redemption requests before confessing.
Debates and risks
Robert Shiller calls some bubbles 'naturally occurring Ponzi processes', where rising prices alone draw new buyers; how far the comparison holds is debated.