Commodities rout slows Caterpillar

CHICAGO (Reuters) - Caterpillar Inc on Tuesday reported lower quarterly net profit that missed expectations as lower prices for copper, coal and iron ore hurt mining equipment orders, and warned the recent fall in oil prices would make for a difficult year in 2015. The report sent the company's shares down nearly 6 percent in premarket trading. The world's largest maker of construction and mining equipment said it expects only a modest improvement in the global economy in 2015 and gave