A $3,000 subsidy paid per flex fuel car sold would have a lessening effect on market efficiency if this subsidy is approved.
Market efficiency is the extent to which market prices accurately reflect all pertinent information that is currently accessible. Since there are flex fuel no securities that are undervalued or overvalued if markets are efficient, there is no way to "beat" the market because prices already reflect all available information.
Market efficiency comes in three different levels. The ineffective aspect of market efficiency is that it makes no sense to predict future prices based on historical price movements. Any information that may be flex fuel gathered from historical pricing, if any, is already included into present prices if all accessible, relevant information is taken into account. Consequently, changes in prices in the future can only be the consequence of new information being accessible.
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