Unemployment aid applications jump to 388K WASHINGTON - Weekly applications for U.S. unemployment benefits jumped 46,000 last week to a seasonally adjusted 388,000, the highest in four months. The increase represents a rebound from the previous week's sharp drop. Both swings were largely due to technical factors. The four-week average of applications, a less volatile measure, fell slightly to 365,500, the Labor Department said Thursday. That is a level consistent with modest hiring. Last week, California reported a large drop in applications, pushing down the overall figure to the lowest since February 2008. This week, it reported a significant increase as it processed applications delayed from the previous week. A department spokesman said the seasonally adjusted numbers "are being distorted ... by an issue of timing." Applications are a proxy for layoffs. When they decline, it suggests hiring is improving. Some recent reports suggest the economy is picking up. Retail sales grew in September at a healthy clip. And builders started construction on new homes and apartments last month at the fastest pace in more than four years. Still, the economy is not growing fast enough to generate much hiring.