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Paper detail

Non-convex dynamic programming and optimal investment

We establish the existence of minimizers in a rather general setting of dynamic stochastic optimization without assuming either convexity or coercivity of the objective function. We apply this to prove the existence of optimal portfolios for non-concave utility maximization problems in financial market models with frictions (such as illiquidity), a first result of its kind. The proofs are based on the dynamic programming principle whose validity is established under quite general assumptions.

preprint2015arXivOpen access
Teemu PenannenAri-Pekka PerkkiöMiklós Rásonyi
math.OCmath.PR
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Teemu PenannenAri-Pekka PerkkiöMiklós Rásonyi

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