由于气候不同而带来的区域性差异很可能同时意味着永久夏时制在某些地区会带来节能效果，但在其他地区却不会。
Regional variations due to differences in climate might also mean permanent daylight saving time could conserve energy in some areas but not as much in others.
相比起来，在美国国内解决成本差异问题倒不那么痛苦，因为工人乐意迁离衰退区域，去发达地区找工作。
Within America, by contrast, cost imbalances are resolved less painfully, because workers are willing to move from depressed states to where jobs are more plentiful.
在《经济学人》对7个国家做的一份分析中，意大利的区域差异是最小的，这或许归因于其庞大财政向南部地区的转移。
In an analysis of seven countries by the Economist, Italy was found to have the lowest level of regional inequality, perhaps due to large fiscal transfers to the Mezzogiorno in the south.
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