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JumpCrisscross 14 hours ago

> your thesis is the GFC was caused by a liquidity crunch/bank run? Isn't that... not true?

It's absolutely proximally true and it's not just my thesis. From Wikipedia: "The first phase of the crisis was the subprime mortgage crisis, which began in early 2007, as mortgage-backed securities (MBS) tied to U.S. real estate, and a vast web of derivatives linked to those MBS, collapsed in value. A liquidity crisis spread to global institutions by mid-2007 and climaxed with the bankruptcy of Lehman Brothers in September 2008, which triggered a stock market crash and bank runs in several countries" [1].

> government encouraged subprime loans -> inaacurately valued MBS -> exponential, unregulated derivative instruments -> leveraged contagion

The subprime crisis shouldn't have been bigger than the S&L crisis [2]. What turned it into a financial crisis was the credit crunch that followed. That crunch was caused by folks running on banks that had sponsored these products.

On "inaccurately valued MBS," note that the paper marked AAA mostly paid out like a AAA security. It would be like if you were perfectly good for your word and I lent you money, but then I wanted to sell on that debt to a third party who didn't trust you at a 50% discount. What does "properly valued" mean in that context? It's ambiguous in a dangerous way. (In this analogy, you wind up paying back the debt at face value. But years later, albeit on schedule.)

[1] https://en.wikipedia.org/wiki/2008_financial_crisis

[2] https://en.wikipedia.org/wiki/Savings_and_loan_crisis