Analysts blamed 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%. At the same time, the surging US dollar, coupled with weakness among US trading partners, cut GDP growth by 1%, according to figures released by the government’s Bureau of Economic Analysis. Exports dropped $39 billion in the first quarter.  On the flip side, inventory growth was particularly strong, adding 0.75 percentage poi...