Should Apple be charging $0.99 per song?

New research by Joel Waldfogel suggests that the optimal price for a song is about $2.30, and that charging higher prices for more popular songs would raise revenue only by 3%:

One alternative is song-specific pricing, much favoured by record companies. (Apple has already moved a bit in this direction with its multi-tier system.) But the research suggested that this would increase profits by a mere 3%. Part of the problem was that people who valued one song highly also tended to place a high value on others. This implies that person-specific, rather than song-specific, pricing would be more efficient. But sellers’ data are not refined enough to set different prices for different people. People may resent such pricing anyway, so it could harm sellers’ brands. Crude profiling—by race or sex, say—would be illegal. In any case, the authors found that basic demographic information did not tell them much about musical tastes.