Postbiological
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- Nov 12, 2010
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Bob and Mary are borrowing $100. Bob lives in Idaho. Mary lives in New York. They will default with 1% probability each. Their default has some correlation < 1. Is it riskier (higher volatility of returns) for investor A to lend Bob money and investor B to lend Mary money, or for investor A and B to each lend half the amount to Bob and Mary?
If you can't provably figure out the answer, it's not your fault, but you simply don't understand the math behind it. The fact that the volatility of diversified investments is lower is NOT a matter of opinion. People who disagree don't just "have another viewpoint." They're wrong. It doesn't matter if everyone doesn't agree. That doesn't affect correctness. Read anything on portfolio theory if you genuinely want to know more about how this works..
Does securitization perhaps have negative externalities, like the possibility of overconfidence in shitty models? Maybe. But that's because people suck at it, not because the strategy is wrong.
It's fine to take this rather condescending argumentative approach, but I don't see what your point is other than that you believe securitzation is a sound strategy for managing risk in loans.
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