Ahead of the Bell: US Home Sales Associated Press Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 03:33 a.m., Wednesday, March 21, 2012 Economists forecast that sales increased to a seasonally adjusted annual rate of 4.6 million last month, according to a FactSet survey. While they are still below the 6 million that economists equate with a healthy economy, the gains have coincided with other good news in the housing market that suggests slow and steady improvement. Mortgage rates are near record lows. [...] the supply of homes fell in January to its lowest level in seven years. Rising prices also boost sales because buyers want to invest in homes that are appreciating in value. Some deals have been scuttled before the closing after banks declined mortgage applications, home inspectors found problems, appraisals showed a home was worth less than the bid, or a buyer lost a job.