Pending home sales eased against a deteriorating economic backdrop but remain in a stable range, according to the National Association of Realtors.

The Pending Home Sales Index, a forward-looking indicator based on contracts signed in October, slipped 0.7 percent to 88.9 from an upwardly revised reading of 89.5 in September, and is 1.0 percent below October 2007 when it was 89.8.

Lawrence Yun, NAR chief economist, said a review of the past year is instructive. “Despite the turmoil in the economy, the overall level of pending home sales has been remarkably stable over the past year, holding in a generally narrow range,” he said. “We did see a spike in August when mortgage conditions temporarily improved, which underscores two things – there is a pent-up demand, and access to safe, affordable mortgages will bring more buyers into the market.”

Conditions remain uneven around the country, but some areas that are showing healthy gains in pending home sales from a year ago include many Florida and California markets, Providence, R.I.; Lansing, Mich.; Oklahoma City; and Las Vegas.

The PHSI in the South jumped 7.8 percent to 95.9 in October but remains 2.9 percent below a year ago. In the Northeast the index rose 0.6 percent to 68.1 but is 14.1 percent below October 2007. The index in the Midwest declined 4.3 percent to 79.7 in October and is 6.8 percent below a year ago. In the West, the index fell 8.7 percent to 103.7 but is 17.4 percent higher than October 2007.