Excelente exemplo do efeito "priming"

"Priming is an implicit memory effect in which exposure to a stimulus influences a response to a later stimulus."

"It’s well known that you get an advantage by making the first move in a price negotiation: If you’re the seller, for example, and you offer a price before the buyer does, a higher quote from you will lead to a significantly higher agreement price. But you can increase that advantage by stating your offer as a precise, rather than a round, number," 

Trecho retirado de "Why You Should Make Your First Price Offer Very Specific"