2Rao AR,Monroe KB.The Effect of Price, Brand Name, and Store Name on Buyers’ Perceptions of Product Quality: An Integrative Review. Journal of Marketing . 1989
3Patrick S. McCarthy.Market Price and Income Elasticities of New Vehicle Demands. The Review of Economics and Statistics . 1996
4Raynor M.E,Mumtaz A.Three Rules for Making A Company Truly Great. Harvard Business . 2013