Analysts blamed cold winter weather and a strong US dollar for the anemic 0.2% gain posted by the US economy in the first quarter of 2015. Last year, the economy increased 3%. In fact, analysts say all the snow in the Northeast caused a 1% decline in GDP for the January-March period. For the record, the first quarter was the third-coldest in 20 years, and it was only the fourth time in 60 years with three or more severe snowstorms in the economically important Northeast states. At the same time,...