Average U.S. gasoline prices fell below $2.00 a gallon in the week before Christmas. There was much rejoicing when average U.S. gasoline prices fell below $2.00 a gallon in the week before Christmas. The question is how accustomed economy watchers should get to regular unleaded at such low levels. It matters for many reasons, not least that lower prices are a big boost to Americans’ budgets whether the savings are spent or saved . The sum is about $800 annually per household compared with a year ago and $1,900 since July 2014 when prices last peaked. But big swings in commodity prices are understood to contain the seeds of their own destruction. And this time may not prove different, even if it will take a while to play out. The fact that the collapse in crude oil has been so rapid and severe may not have swayed large state-owned […]