A decision-making short-cut where the person chooses an alternative or believes in something based on how quickly it is recalled. This reflects that more recent or more prominently featured news is believed to be important and true rather than all the facts.
Diagrams
Originated from/Coined by
Amos Tversky and Daniel Kahneman
Further Reading/ References
https://en.wikipedia.org/wiki/Availability_heuristic
http://www.howtogetyourownway.com/biases/availability_bias.html