postbubble period, the wealth effect of asset price movements has a bigger impact on economic growth rates than monetary policy does. People tend to underestimate the size of this effect. In the early stages of a bubble bursting, when stock prices fall and earnings have not yet declined, people mistakenly judge the decline to be a buying opportunity and find stocks cheap in relation to both past earnings and expected earnings, failing to account for the amount of decline in earnings that is likely to result from what’s to come. But the reversal is self-reinforcing. As wealth falls first and
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