这个原理是常识，需要记住这个说法儿而已。
The principle that potential return rises with an increase in risk. Low levels of uncertainty (low risk) are associated with low potential returns, whereas high levels of uncertainty (high risk) are associated with high potential returns. According to the risk-return tradeoff, invested money can render higher profits only if it is subject to the possibility of being lost.
[@more@]Because of the risk-return tradeoff, you must be aware of your personal risk tolerance when choosing investments for your portfolio. Taking on some risk is the price of achieving returns; therefore, if you want to make money, you can't cut out all risk. The goal instead is to find an appropriate balance - one that generates some profit, but still allows you to sleep at night.来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/60325/viewspace-1010064/ ，如需转载，请注明出处，否则将追究法律责任。
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