Bloomberg reports that “the lowest oil price in four years will provide stimulus of as much as $1.1 trillion to global economies by lowering the cost of fuels and other commodities, according to Citigroup Inc.”  

“Brent, the world’s most active crude contract, closed at $83.78 a barrel in London yesterday. That’s more than 20 percent below its average for the past three years, amounting to savings of about $1.8 billion a day based on current output, Citigroup estimates. Savings will climb to $1.1 trillion annually as the slide cuts costs of other commodities, leaving consumers and companies with extra cash to spend and bolstering growth, according to Ed Morse, the bank’s head of global commodities research in New York.”