The EU Directive 2000/60/EC, also known as the “Framework directive in the field of water policy”, stresses the importance of water in human development processes and states that EU members should coordinate water policies towards a sustainable use of this resource; hence, water has a...

This paper analyses migrants’ financial behaviour and financial services demand and investigates supply policies that banks can adopt in order to satisfy their specific financial needs. On the demand side we draw a theoretical framework about migrants’ life cycle and financial needs to...

We study the properties of multifunction operators that are contractive in the Covier-Nadler sense. In this situation, such operators $T$ possess fixed points satisying the relation $x \in Tx$. We introduce an iterative method involving projections that guarantees convergence from any starting...

Most natural phenomena or the experiments that explore them are subject to small variations in the environment within which they take place. As a result, data gathered from many runs of the same experiment may well show differences that are most suitably accounted for by a model that...

Many inverse problems in applied mathematics can be formulated as the approximation of a target element $u$ in a complete metric space $(X,d)$ by the fixed point $\bar x$ of an appropriate contraction mapping $T : X \to X$. The method of {\em collage coding} seeks to solve this problem by...

In this paper we introduce the Random Recursive Partitioning (RRP) method. This method generates a proximity matrix which can be used in applications like average treatment effect estimation in observational studies. RRP is a Monte Carlo method that randomly generates non-empty recursive...

A one dimensional diffusion process $X=\{X_t, 0\leq t \leq T\}$ is observed only when its path lies over some threshold $\tau$. On the basis of the observable part of the trajectory, the problem is to estimate finite dimensional parameter in both drift and diffusion coefficient under a discrete...

Several methods are currently available to simulate paths of the Brownian motion. In particular, paths of the BM can be simulated using the properties of the increments of the process like in the Euler scheme, or as the limit of a random walk or via L^2 decomposition like the...

The telegraph process {X(t), t0}, is supposed to be observed at n+1 equidistant time points t_i=i Delta_n,i=0,1,... , n. The unknown value of lambda, the underlying rate of the Poisson process, is a parameter to be estimated. The asymptotic framework considered is the following: Delta_n - 0, n...

In Chapter 17 of the General Theory (henceforth GT) Keynes tries to generalize the standard GT model, which can be found expounded in the preceding sixteen Chapters of his well-known book, by developing an “extended” model of portfolio choice and capital-asset pricing based on a newly...