Glass-Steagall Act
The Glass-Steagall Act of 1933 was a US law that separated commercial banking, which handles ordinary deposits, from investment banking, which engages in speculative financial activity. It was passed after the 1929 crash to prevent retail banks from gambling with depositors' money. Its repeal by Bill Clinton in 1999 allowed banks to combine both functions and directly contributed to the conditions that produced the 2008 financial crisis.
The Glass-Steagall Act emerged from congressional investigations into the 1929 crash, which revealed that many commercial banks had used depositors' funds to speculate in the stock market. When those bets failed, ordinary savers lost their savings. The act created a legal firewall: deposit-taking institutions could not engage in speculative investment activity, and investment banks operating in speculative markets could not hold retail deposits. For six decades, this separation kept the two risk profiles apart.
The campaign to repeal Glass-Steagall was long and heavily funded by the financial industry. Banks argued that the separation put American institutions at a competitive disadvantage against foreign banks that faced no such restrictions. In 1999, the Gramm-Leach-Bliley Act formally repealed the Glass-Steagall provisions. The signing was celebrated by the financial industry as a modernization of outdated regulation. Bill Clinton later acknowledged that repealing the act was a mistake.
The repeal had two immediate structural consequences. First, it created enormous financial conglomerates that combined retail deposits with investment banking operations, giving these institutions both a vast capital base and a strong incentive to find ever more speculative vehicles to generate returns. Second, it meant that when those speculative vehicles failed, as they did with subprime mortgage CDOs in 2008, the retail banking system was directly exposed. Taxpayers, whose deposits backed the retail side, effectively underwrote the speculative losses on the investment side.
The repeal of Glass-Steagall is a clear example of regulatory capture, where the institutions a law is meant to constrain successfully lobby for its removal. The 2008 crisis that followed demonstrated that the original architects of the 1933 act correctly understood the structural danger of mixing the two banking functions. The consolidation that followed the 2008 crisis, with JP Morgan absorbing failing competitors, produced exactly the too-big-to-fail concentration that Glass-Steagall had been designed to prevent.
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Frequently asked questions
What did the Glass-Steagall Act do? ＋
Glass-Steagall, passed in 1933 after the Great Depression, legally separated deposit-taking commercial banks from speculative investment banks. It prevented retail banks from gambling with ordinary people's savings. For 66 years it kept the two risk profiles apart, and its repeal in 1999 directly enabled the combination of retail deposits and speculative mortgage instruments that collapsed in 2008.
Why was Glass-Steagall repealed and what happened next? ＋
The financial industry lobbied for decades to repeal Glass-Steagall, arguing it was outdated. Bill Clinton signed the repeal in 1999. Within a decade, the newly combined financial conglomerates had used retail deposit bases to fund massive subprime mortgage speculation. When those bets failed in 2008, taxpayers bailed out the losses, confirming exactly what the original act was designed to prevent.