Qualitative research and Statistical analysis of an intersubjet experimental design show that virtual bundling (volume discount) increases economic perceived value but also cognitive perceived costs
DESMET, P., SABRI-ZAARAOUI, O., PECHPEYROU (DE), P.P. and PARGUEL, B. (2006). Consumer's Perceptions and Evaluations of Virtual Bundling. In: ANZMAC. Advancing Theory. Maintaining Relevance. QUT (Queensland University of Technology).