Several legal music download services, including some that are free (e.g., Spotify), are now available to consumers. These services may be viewed as "new service interventions" that could potentially <i>change the mental models</i> of consumers toward illegal file sharing and result in fewer downloads...

Most of the existing reverse auction methods are restricted to the price dimension and assume that the qualitative criteria are fixed prior to competitive source selection. Multicriteria reverse auctions (MCRAs) facilitate the negotiation of price and other qualitative and quantitative criteria....