This paper analyzes the impact of music file sharing on CD purchases. Traditionally, two arguments are opposed concerning the impact of music file sharing on CD sales. On the one hand, MP3 downloads only reduces sales of legitimate CDs (the competition effect). On the other hand, consumption of...

[eng] Detention and use of payment instruments in France . In this article, we offer a general picture of the detention and the use of payment instruments in France, and we determine which variables influence consumer payment behavior. We show that a large majority of the French hold a checkbook...

This paper deals with the question of the security of the payments on Internet and proposes a formal framework to study its impact on the development of the electronic commerce. We show, within the framework of a competitive supply of the security of the payments, that a weak development of the...

The purpose of this article is to identify which, if any, segments of the movie business have suffered from digital piracy. We use a sample of 620 university members including undergraduate students, graduate students and professors to assess the effect of digital piracy on legal demand. A large...