Citing improvements in PPM samples among 18-34, Arbitron has green-lighted PPM as currency in eight markets.
- New York (including Nassau-Suffolk, Middlesex-Somerset-Union)
- Los Angeles (including Riverside-San Bernardino)
- Chicago and
- San Francisco (including San Jose)
The September reports for these markets, using PPM data, will be available on October 8, 2008. At that time the company’s diary-based radio ratings will be withdrawn from those eight markets and radio transactions among Arbitron-subscribing stations and agencies will take place solely using PPM-based radio ratings.
These markets join Houston and Philadelphia as “live” currency markets. PPM technology has also been licensed for radio and/or television measurement in Belgium, Denmark, Norway, Iceland, Kazakhstan, Canada, and Singapore.
Source: Arbitron, 6/12/08