The key reason of 1987's crash is the Programming Trading -- fund managers use programmings to automatically maintain its Market-Neutral position to manage the risk. The underlying principle is: if the market drops, you need to short more. The biggest weakness is the computers executing orders rigidly following the program and won't taking a look at the fundamental. The market drop, they short; due to those funds' sizes, the market were dumped even lower due to the programming shorting, then the computer short even more; then market even lower, then short more. At the end, it became an unreasonable avalanche.
You could see the difference between 1987 crash & 1929 depression: the 1987 crash only affected Wall Street, nothing to do with the national economy, that's why the market recovered quickly in contrast to 1929.
If anyone interested to know more about this topic, just use Financial Risk Management to search it and you will find the answer.
You could see the difference between 1987 crash & 1929 depression: the 1987 crash only affected Wall Street, nothing to do with the national economy, that's why the market recovered quickly in contrast to 1929.
If anyone interested to know more about this topic, just use Financial Risk Management to search it and you will find the answer.