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arXiv 1102.5075math.OCq-fin.PR
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效用无差异定价:时间一致性方法

Utility Indifference Pricing: A Time Consistent Approach

Traian A Pirvu, Huayue Zhang

摘要:

研究了动态多期随机框架下的最优投资组合问题。风险偏好是指数(CARA)型的绝对风险规避系数的变化与制度。市场模型是不完整的,有两种风险资产:一种是可交易的,一种是不可交易的。在这种情况下,最优投资策略是时间不一致的。因此,考虑子博弈完美均衡策略。风险资产上未定权益的效用无差异价格是通过无差异估值算法计算的。通过运行数值实验,我们研究了这些价格是如何随着模型参数的变化而变化的。

英文摘要:

This paper considers the optimal portfolio selection problem in a dynamic multi-period stochastic framework with regime switching. The risk preferences are of exponential (CARA) type with an absolute coefficient of risk aversion which changes with the regime. The market model is incomplete and there are two risky assets: one tradable and one non-tradable. In this context, the optimal investment strategies are time inconsistent. Consequently, the subgame perfect equilibrium strategies are considered. The utility indifference prices of a contingent claim written on the risky assets are computed via an indifference valuation algorithm. By running numerical experiments, we examine how these prices vary in response to changes in model parameters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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