年金基金扰动鞅的收敛性与随机模型

Richard Rödler
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引用次数: 2

摘要

我们的目标是建立一个给定年金基金平均收入的随机模型。因此,我们考虑一类特殊的随机过程{X n: n∈IN}满足E(X n+1 |F n) = α n X n+ β n [P]对于所有n∈IN。(0.1)式(0.1)中,X n+1表示n+1时刻(未来)的年金基金收益,F n表示截至n时刻(现在)的货币市场信息。我们希望找到这样一个随机过程p -几乎肯定收敛的条件,并确定我们的年金基金是否存在限制收益。本文还考虑了L - 1收敛性问题。
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Convergence of Disturbed Martingales and a Stochastic Model for Annuity Funds
Our aim is a stochastic model for the average income of a given annuity fund. Therefore we consider a special kind of stochastic process {X n : n ∈ IN} satisfying a condition of the form: E(X n+1 |F n ) = α n X n + β n [P] for all n ∈ IN. (0.1) In equation (0.1) X n+1 denotes the income of the annuity fund at time n+ 1 (future) and F n is the information about the money market up to time n (present). We wish to find conditions under which such a stochastic process is P-almost surely convergent and to determine whether or not there is a limiting income from our annuity fund. The question of L 1 -convergence is also considered.
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