Brand differentiation between identical products an analysis from a consumer law viewpoint

The article treats the situation in which one and the same firm within one country sells an identical product under different brand names. The major motive behind brand differentiation are presented, as well as the consumer difficulties. The position with regard to brand differentiation in the Paris Convention on Industrial Property and national trademark law is analyzed. The author finds that brand differentiation usually does not constitute a problem seen from the perspective of trademark law. The author then discusses brand differentiation as a problem of antitrust law and unfair marketing practices law. Here, Swedish law, especially the recent Alcro case on brand differentiation in the Swedish Market Court, is given major attention. The author finds a reasonable solution to be the demand ofinformation to consumers about the identity behind brand differentiation.