Mais e melhor escuta de rádio (PPM)

«(...) The first official radio ratings from Arbitron’s long-in-the-works PPM are out for the Philadelphia market, and those initial ratings suggest very different radio listening behavior than what the old diary system reported. More people are listening to radio than previously thought. They're also listening to more stations, and they’re doing so for longer periods of time. And, most significant, ratings for specific demographics are dipping on some top stations. Much as with Nielsen's old TV diary system, it appears Arbitron's diary households were wont to fill in fewer stations than they actually listened to and to fill in the best-known or biggest stations. The diary says the average listener listens to two or three radio stations but the PPM says the average listener is exposed to five or six stations,” says Thom Mocarsky from Arbitron. In the end, once the PPM system is fully rolled out, that means media buyers will be booking many more spots on a longer list of stations to reach the same number of people as current schedules. Buyers will have to buy more units to achieve current reach and frequency goals to reflect the fact that listeners are splitting their time among more stations. That will tighten up inventory and will give stations some leverage to raise prices.»

fonte: «Radio buyers can expect deeper buys», Media Life Magazine, By Kevin Downey, May 1, 2007