1. Anderson, J. E. (2003). Traders, cops and robbers (NBER Working Papers 9572). Cambridge, MA: National Bureau of Economic Research.
2. Ariely, D. (2009). Predictably irrational: The hidden forces that shape our decisions. London: HarperCollins.
3. Azar, O. H. (2004). Psychological motivations and biases in economic behavior and their effects on markets and firm strategy (Unpublished doctoral dissertation). Northwestern University, Evanston, Illinois.
4. Azar, O. H. (2011). Do people think about absolute or relative price differences when choosing between substitute goods? Journal of Economic Psychology, 32, 450–457.
5. Azar, O. H. (2013). Optimal strategy of multi-product retailers with relative thinking and reference prices (Discussion Paper, No.13-13). Beersheba: Monaster Center for Economic Research, Ben-Gurion University of the Negev.