Housing could be in for a double-dip recession that would have a significant impact on bank earnings, according to officials at Standard & Poor’s. Robert Shiller, a co-founder of S&P’s/CaseShiller Home Price Indices, said house prices could sink another 10 to 25 percent over the next five years. “We’re kind of at a tipping point now,” he said, speaking at a housing conference sponsored by the rating service this week. “Unemployment rates are up and housing prices are down.” The lower home prices evident in data from March 2011 could represent a...