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43. 金融共振橋
P1:describe an phenomenon
・a person walks→slight sideways force; many people walk→move footbridge
・synchronous lateral excitation
P2:use p1 to explain financial markets
・pedestrian = bank; the movements of the bridge = price change
・liquidity↓→ financial market become unstable
P3:example: Great Crunch
・subprime-mortgage bonds froze caused many problem, and the banks pull back credit line and hoard their capital → financial market collapse
P4:explain
・not because of greed, overconfidence and stupidity, but because of rational irrationality → aggregation produce catastrophe
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