The move could cause havoc for buyers and sellers in the affected markets. At issue is the telephone solicitation Nielsen uses to find viewers and households that will give the company TV viewing data.
Once notified, Nielsen will have a chance to respond to the denial of accreditation. Nielsen could not be reached for comment.
The MRC accreditation discussions are conducted under strict secrecy. MRC Executive Director Richard Weinstein declined comment.
Copyright September 1998, Crain Communications Inc.