According to CNNMoney.com, the government reported another drop in new home construction in January, prompting Yale economist Robert Shiller to say home prices may continue to fall another 25 percent.  Shiller compares changes in home prices to income growth, noting that home prices have risen more than income since the 1990s.  Albert Sanders, director or Real Estate Entrepreneurship at George Mason University, says prices would have to drop another 15 percent to return to a normal ratio.  Dean Baker, co-director of the Center for Economic and Policy Research, thinks the fall may only be 10-15 percent.  He adds that the West Coast may see more prices falling than Texas or the Midwest.  Others say home prices may or may not fall, only that you should not expect to gain a return on your investment in less than five years.