What would likely happen after the news spread is that there will be a decrease in supply for mp3 players. It is because mp3 players are considered to be loud music for it is need to be plugged on the ears for better sound and hearing in listening to music. If it is claimed that it increases hearing loss, people will be alarmed and think that the mp3 players will contribute to this problem, giving the effect of other people not buying it, decreasing the supply.