How regularly should I promote?
A regular promotion with a reason (e.g., semi-annual sale) can be effective. While consumers can wait for the promotion, they may be persuaded to buy more than they normally would have at a long-awaited event
Should I provide reasons for the promotion?
Providing a reason will impede informational inferences and may also lead to positive affect For example, stating that a promotion is offered to existing customers to "reward" them for their patronage would be more effective than stating that it is offered to retain their business.