第一点也是最重要的，公开使用的产品，无论是直接公开还是间接公开，价格溢价都要比私下使用的产品高。
First and most important, products that are consumed in public, directly or indirectly, command huge price premiums relative to goods used in private.
农产品期货市场具有“超额风险溢价”，隐喻着影响期货价格的信号未能被市场及时发现并充分吸收。
The market of agricultural produce futures is of premium of excessive risk, implying the market's failure to timely discover and completely absorb the signals of affecting prices of futures.
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