Small changes in forecast assumptions can produce big changes in the readings of valuation models.

各种预测假设细微的变动都可以使各种价值化模型的结果产生巨大的变化。

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When any of these assumptions change, the forecast should change with them.

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The BBC's business editor Robert Peston has suggested that correcting the department's forecast assumptions could lead to required levels of capital that are simply unaffordable for the bidders.

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The Chancellor uses the lower end of that forecast for his budget assumptions and has insisted recently that they will be met.

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