The paper addresses the problem of providing a framework and an algorithm to evaluate super and sub replicating prices, for European options, having interesting risk-reward characteristics. A general operational framework is put forward and illustrated by an algorithmic construction of...

We approach the continuous-time mean-variance (MV) portfolio selection with reinforcement learning (RL). The problem is to achieve the best tradeoff between exploration and exploitation, and is formulated as an entropy-regularized, relaxed stochastic control problem. We prove that the optimal...

This paper provides expressions for solutions of a one-dimensional global optimization problem using an adjoint variable which represents the available one-sided improvements up to the interval “horizon.” Interpreting the problem in terms of optimal stopping or optimal starting, the solution...

Risk factors and systematic factor strategies are fast becoming an integral part of the global asset management landscape. In this report, we provide an introduction to, and critique of, the factor investing paradigm in a South African setting. We initially discuss the general factor...

We introduce a generic solver for dynamic portfolio allocation problems when the market exhibits return predictability, price impact and partial observability. We assume that the price modeling can be encoded into a linear state-space and we demonstrate how the problem then falls into the LQG...

Spanish Abstract: La relación existente entre el riego y la rentabilidad de un activo financiero es una preocupación constante del inversionista a la hora de conformar su portafolio de inversión. La principal meta en la construcción del portafolio consiste en distribuir óptimamente la...

We consider a large trader liquidating a portfolio using a transparent trading venue with price impact and a dark pool with execution uncertainty. The optimal execution strategy uses both venues continuously, with dark pool orders over-/underrepresenting the portfolio size depending on return...

There is an inconsistency in the SFE model since a firm is assumed to know rival firms' aggregate supply function in order determine its own bid function. The paper reformulates the model so that a firm needs not know its rivals' bid or even assume that they use the SFE model to construct its...

Turkish Abstract:Zaman ve mekândan bağımsız olarak istenen bilgiye anında ulaşabilme imkânı sunan mobilite, internet ve mobil cihazların her geçen gün daha çok yaygınlaşmasıyla günlük hayattaki kullanım alanını artırmaktadır. Araştırmalara göre 2013 yılı 4....

We introduce a theoretical model of executives with insider information who receive executive stock options (ESOs) as incentives and optimize their “outside wealth” portfolios. We show that insider information nullifies ESO incentivizing, misaligning executives' and shareholders' interests....