也有其他的个人股票期货，但是最受欢迎的还是外汇，股指和实物商品期货。
There are also some individual stock futures, but these are not as popular as the currency, index, and commodities futures.
费雪效应理论认为股票通常代表实物资产的求偿权，当经济出现通货膨胀时，股票应该是规避通货膨胀风险的一种资产。
According to the Fisher hypothesis, stock is usually on behalf of the claim of physical assets, and when economy is in inflation, the stock should be an asset which can avoid the risk of inflation.
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