Buyers and sellers are waiting for the other to blink: The housing slowdown isn't giving buyers the big bargains that they might have hoped; and where there are discounts, buyers aren't leaping to grab them, says Karl E. Case, an economics professor at Wellesley College, who specializes in real estate. Case says the most recent survey he and a colleague conducted among homebuyers revealed growing pessimism about buying in a down market. "They're scared they're going to buy something very expensive that's going to fall in value," he says. Sellers, meanwhile, are being "stubborn. They seem to be holding out so far." The result: "People are staring each other down." Case described home prices as having "downward stickiness," meaning they don't fall nearly as much as they rise during the strong periods. In previous down periods, Case points out, the economy has been in a general slump. This time, in most parts of the country, the economy is growing and adding jobs. Case concludes the housing market is in "that flat period, of four to six quarters, where prices don't plummet. They hold on."