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Jean-Yves Jaffray (1939–2009) was a French mathematician and economist who made influential contributions in the fields of decision theory and mathematical statistics. He pioneered methods in decision theory such as linear utility theory for belief functions, bridging the gap between expected utility and the maximin rule by using subjective probability to encompass belief functions.

References

1. ^ A. Bouyssou et al., Decision Making Process: Concepts and Methods
2. M. Cohen, Tribute to Jean-Yves Jaffray
3. Jaffray, Jean-Yves (1989). "Linear utility theory for belief functions"
4. P.H. Giang, On Jaffray’s Decision Model for Belief Functions

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