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Generalising the Pari-Mutuel Model

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Book cover Uncertainty Modelling in Data Science (SMPS 2018)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 832))

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Abstract

We introduce two models for imprecise probabilities which generalise the Pari-Mutuel Model while retaining its simple structure. Their consistency properties are investigated, as well as their capability of formalising an assessor’s different attitudes. It turns out that one model is always coherent, while the other is (occasionally coherent but) generally only 2-coherent, and may elicit a conflicting attitude towards risk.

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Notes

  1. 1.

    It can be shown that a third, less relevant, submodel completes the family of NL models.

  2. 2.

    When \(b=1,\,a=0\), \(\mu \) is a probability. We shall hereafter neglect this subcase.

  3. 3.

    \(a+b>1\) in (k) could be relaxed to \(a+b\ge 1\), thus including the PMM as a special HB-PMM. We left out this case to focus on the ‘proper’ HB-PMMs.

References

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Correspondence to Paolo Vicig .

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Corsato, C., Pelessoni, R., Vicig, P. (2019). Generalising the Pari-Mutuel Model. In: Destercke, S., Denoeux, T., Gil, M., Grzegorzewski, P., Hryniewicz, O. (eds) Uncertainty Modelling in Data Science. SMPS 2018. Advances in Intelligent Systems and Computing, vol 832. Springer, Cham. https://doi.org/10.1007/978-3-319-97547-4_28

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