身边的经济学·社会常识英语30篇（5）
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How Gas Prices Jump Before Holidays—Without New Laws or Wars
节假日前油价为何飙升？未必因战争或新法规
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Gas prices rise before summer holidays not because oil suddenly runs out, but because traders expect more drivers on the road.
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Refineries switch to pricier 'summer blend' fuel in spring, which burns cleaner but costs more to make.
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Traders watch weather forecasts closely—if a heatwave is predicted, they’ll buy oil futures early to lock in supply.
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Even rumors about pipeline problems or refinery fires can move prices before any real shortage occurs.
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U.S. gasoline markets are regional, so a storm in Texas affects Atlanta more than Anchorage—even though both use the same brand.
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Taxes on gas vary by state, and local stations add different markups based on competition and rent costs.
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Drivers often fill up earlier than needed when prices climb, pushing demand up further in a self-fulfilling cycle.
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Understanding this helps us avoid panic buying—and see that price swings reflect expectations as much as reality.