Elena HolodnySeptember 19, 2014 David Rosenberg, Chief Economist & Strategist at Gluskin Sheff, surprised everyone when he adopted a more bullish view in 2013. On Friday he released a research note that included a brief and pretty optimistic summary of the US economy. Here's what it said: United States In the US, the economy is starting to fire on all cylinders for the first time this cycle. The strong US dollar is a source of margin support for importers which is great news for many consumer cyclicals. Tack on stepped consumer credit growth, job and wage gains, gasoline price relief,...