When a variable magnetic field is applied to a ferromagnetic material, the change in magnetic induction occurs discontinuously as a result of the movement of magnetic domain walls. These discrete and stochastic jumps can induce, in a probe coil near the material surface, signals known as...

AMS classifications: 90D12; 90B35

Recently, the Social Accounting Matrix (SAM) has been resurrected as a policy analysis tool and, in the last decade, attention has been paid to SAM multipliers, as well as to the use of the SAM as a benchmark for computable general equilibrium models. This paper constructs a SAM for the regional...

We study an optimal liquidation problem with multiplicative price impact in which the trend of the asset's price is an unobservable Bernoulli random variable. The investor aims at selling over an infinite time-horizon a fixed amount of assets in order to maximize a net expected profit...

This paper examines the retirement decision, optimal investment, and consumption strategies under an age-dependent force of mortality. We formulate the optimization problem as a combined stochastic control and optimal stopping problem with a random time horizon, featuring three state variables:...

This paper investigates the consumption and investment decisions of an individual facing uncertain lifespan and stochastic labor income within a Black-Scholes market framework, A key aspect of our study involves the agent's option to choose when to acquire life insurance for bequest purposes, We...

We propose a model in which, in exchange to the payment of a fixed transaction cost, an insurance company can choose the retention level as well as the time at which subscribing a perpetual reinsurance contract. The surplus process of the insurance company evolves according to the diffusive...