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A pedestrian is reflected in the window display of an International Watch Co. AG (IWC) luxury wristwatches store in Zurich, Switzerland, on Thursday, Dec. 11, 2014. The Swiss National Bank predicted consumer prices will drop next year and said the risk of deflation has increased as it vowed to defend its cap on the franc. Photographer: Gianluca Colla/Bloomberg via Getty Images

A pedestrian is reflected in the window display of an International Watch Co. AG (IWC) luxury wristwatches store in Zurich, Switzerland, on Thursday, Dec. 11, 2014. The Swiss National Bank predicted consumer prices will drop next year and said the risk of deflation has increased as it vowed to defend its cap on the franc. Photographer: Gianluca Colla/Bloomberg via Getty Images