NVR L.P., the financially strapped McLean home builder, said it has working capital in place for an "indefinite period of time" while it continues to negotiate a working capital line of credit with its eight lenders. NVR's $220 million line of credit, which it uses to fund its operations, expired Dec. 15.

AT&T mailed proxy material to NCR shareholders, a move that could clear the way for its proposed $6.1 billion takeover of the computer maker. The material asks NCR shareholders to authorize a special meeting at which they would be asked to replace a majority of the directors with AT&T's candidates.

USA Today has developed a battery-operated news rack that accepts dollar bills and gives change. The racks have been placed in subway and office locations in the Washington area and 200 will be installed in other cities this year.

Toys R Us said its sales fell during the holiday shopping season. Overall sales rose 7.7 percent from year-earlier levels in the eight weeks before Christmas, but sales from its stores open at least a year were down 6 percent.

Paramount Communications stock rose $1.12 1/2 to $42 after Nikkei Telecom reported the company is seeking to sell its film producing unit to a Japanese company or group of companies. Paramount denied the report.