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风险意识投资

Risk conscious investment

Quantitative Finance · 2024
被引 1
人大 BABS 3

中文导读

将风险意识投资者定义为保守估值或动态非线性期望的最大化者,通过扭曲尾部概率或尾部度量解决静态和动态问题,并在768只股票上进行了七年实证。

Abstract

The risk conscious investor is defined as the maximizer of a conservative valuation or a dynamic nonlinear expectation. Both the static and dynamic problems are addressed using distortions of tail probabilities or distortions of tail measures. The multivariate static problem is solved in the context of the multivariate bilateral gamma model. For the dynamic model states and their transitions are modeled in two ways. The first defines states by a parametric model for the return distribution with transitions described by a continuous-time finite state Markov chain between the distributional possibilities. In the second model states are represented by the first four power variations with transitions given by (OU) equations for modeling stochastically the first four power variations as Tempered Fractional Lévy Processes (TFLP). Numerical solutions for policy functions are implemented in trading 768 equity assets over seven years ending December 2021.

金融经济学计量经济学精算科学投资学