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Chapter 11: Consistent risk measures and a non-linear extension of backwards martingale convergence

    https://doi.org/10.1142/9789814596534_0011Cited by:1 (Source: Crossref)
    Abstract:

    We study the behavior of conditional risk measures along decreasing σ-fields. Under a condition of consistency, we prove a non-linear extension of backwards martingale convergence. In particular we show the existence of a limiting conditional risk measure with respect to the tail field, we describe its dual representation in terms of a limiting penalty function, and we show that consistency extends to the tail field. Moreover, we clarify the structure of global risk measures which are consistent with the given sequence of conditional risk measures.