A lmost every year since the end of the financial crisis has started with rosy expectations among American forecasters, and this one is no different. Stockmarkets are buoyant, consumer confidence is improving, and economic seers are raising their growth forecasts for 2014. America's s&p 500 share index is at a record high, after rising 30% in 2013-the biggest annual gain in almost two decades. Powered by America, global growth of close to 4%, on a purchasing-power-parity basis, seems possible.'
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