The 2008 Financial Crisis
On September 15, 2008, Lehman Brothers — the fourth-largest US investment bank, 158 years old — filed for the largest bankruptcy in American history, listing more than $600 billion in assets. Within forty-eight hours the global money market had effectively frozen: banks would not lend to one another, even overnight, because none could tell which counterparty held the next pile of worthless mortgage paper. The crisis had been building since subprime defaults surfaced in 2007 and Bear Stearns was rescued in March 2008, but Lehman was the moment the system seized. The US Treasury and Federal Reserve, coordinating with central banks worldwide, then orchestrated the largest peacetime financial intervention in history — bailouts, guarantees, and money creation on an unprecedented scale — to prevent a global depression. They mostly succeeded. Most of what they did is still being argued about.
The crisis exposed a systemic failure in how the world's deepest credit market had been pricing risk. Mortgage-backed securities and their derivatives — instruments designed to spread and neutralize default risk by slicing it into tranches — had instead concentrated it inside the largest institutions, opaquely and with catastrophic leverage. Credit rating agencies, paid by the issuers, had stamped AAA on assets backed by loans whose borrowers often could not sustain the payments once teaser rates reset or house prices fell. Regulators, ideologically committed to self-correcting markets, had been outmatched. The post-crisis settlement combined regulatory tightening (the Dodd-Frank Act in the US, Basel III internationally), the institutionalization of too big to fail as a working assumption — the largest banks emerged larger — and a decade of unconventional monetary policy (zero rates, quantitative easing) that supported asset prices and eased financial conditions while the labour-market recovery remained painfully slow, leaving asset owners best placed to benefit. The political residue proved at least as consequential as the economic one. The crisis discredited the technocratic competence of the Western elite, fueled the Tea Party on the right and Occupy on the left, and laid the groundwork for the populist revolts — Brexit, Trump, the European far right — that reshaped the developed world over the following decade.