BEIJING: China is the latest proving ground for Arbitron's Portable People Meter radio audience measuring system. CSM Media Research - a joint venture between TNS and local researcher CTR Market Research - will shortly begin testing in Beijing.

Comments CSM's Paul Wang: "Both China's media industry and Beijing's broadcasters have shown the foresight to take full advantage of the PPM system's ability to deliver more accurate audience estimates from the PPM panel."

The PPM system is already used in some European markets and will be rolled out, after much controversy, across the top 50 US markets by 2010.

Data sourced from M&M Europe; additional content by WARC staff