Optimal Dividends under Model Uncertainty
Optimization and Control
2021-09-21 v1 Probability
Abstract
We consider a diffusive model for optimally distributing dividends, while allowing for Knightian model ambiguity concerning the drift of the surplus process. We show that the value function is the unique solution of a non-linear Hamilton-Jacobi-Bellman variational inequality. In addition, this value function embodies a unique optimal threshold strategy for the insurer's surplus, thereby making it the smooth pasting of a non-linear and linear part at the location of the threshold. Furthermore, we obtain continuity and monotonicity of the value function and the threshold strategy with respect to the parameter that measures ambiguity of our model.
Cite
@article{arxiv.2109.09137,
title = {Optimal Dividends under Model Uncertainty},
author = {Prakash Chakraborty and Asaf Cohen and Virginia R. Young},
journal= {arXiv preprint arXiv:2109.09137},
year = {2021}
}