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1·A good example of what many (though not all) economists would consider a mistake has been the decision to go for tradeable emissions permits whose prices have proved disturbingly unstable.

许多(尽管并非所有)经济学家都认为是一个错误的恰当例子是：决定推行可交易的排放权。令人不安的是，事实证明，排放权价格非常不稳定。