Surveys or Specifics: Do Economies Respond to Consumer Expectations or the Facts at Hand?

In order to gain insight into the future state of the economy, some analysts utilize consumer and business surveys. Randomly selected consumers and businesspersons are asked to provide their views about where the economy is heading.
If a survey shows that, most of those surveyed express optimism it is regarded as good news for the economy. Conversely, if the majority of those surveyed are pessimistic it is taken as a bad omen for future economic activity.
It appears that the information regarding future economic conditions is dispersed.