Affect, Generalization, and the Perception of Risk.

  title={Affect, Generalization, and the Perception of Risk.},
  author={Eric J. Johnson and Amos Tversky},
  journal={Journal of Personality and Social Psychology},
Experimental manipulations of affect induced by a brief newspaper report of a tragic event produced a pervasive increase in subjects' estimates of the frequency of many risks and other undesirable events. Contrary to expectation, the effect was independent of the similarity between the report arid the estimated risk. An account of a fatal stabbing did not increase the frequency estimate of a closely related risk, homicide, more than the estimates of unrelated risks such as natural hazards. An… 

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