The intensity with which consumers respond to losses and gains is different, that is effects are asymmetric. It seems that the loss response is more intense. In other words, when facing a loss or a gain of the same quantity, a reduced probability of choice as a consequence of a loss is greater than a gain-induced increased probability. The importance of this phenomenon must be considered explicitly in strategy and managerial performances. Activities that increase product value, such as gifts or the opportunity to take part in games or raffles, therefore need to be developed