Seeders, leechers and social norms: evidence from the market for illicit digital downloading

The sharing of files via peer-to-peer (P2P) and related networks has become a hugely contentious issue in recent years, with the music industry citing this practice as a significant threat to intellectual property rights and the long term financial viability of its activities. Using Finnish data, this study examines the apparent determinants and factors associated with this important and little documented activity. Results indica te that file sharers behave in a way which is consistent with expectations drawn from economic theory but differs depending upon the stated extent of participation.