Abstract
This paper mainly discusses the availability heuristic in behavioral economics. This article mainly introduces the definition and significance of Availability heuristic, as well as three examples of its impact on the economic sphere of everyday life from different aspects. These are real estate, transportation, and stocks. Because availability heuristic is one of the ways the human brain works, it’s hard for any of us to avoid making wrong choices because of it. It will appear in all aspects of our lives, affecting not only personal development, but also economic life from various angles. Therefore, the research purpose of this paper is to let more people know availability heuristic in rational thinking and learn to use it to make more rationally and correct choices.