In most economic matters there are information/action lags.
Between the announcement of unemployment rates and the acceptance of what those rates mean, there is a lag. Between entering a store and examining the merchandise, there is a lag. Good retailers work hard to attract the customer quickly and direct that attention to the goods the customer is most likely to buy.
Politicians use or fight the lag according to their needs.
A salesperson approaches you and says, “May I help you?” The question is intended to reduce the time between your entry and when you start to examine the goods you want. Other stores leave you to wander, using signs and scents to direct your attention to goods you might not have considered before entering the store. It is a vital exercise in providing information to and getting information from the consumer.