The nested distance builds on the Wasserstein distance to quantify the difference of stochastic processes, including also the evolution of information modelled by filtrations. The Sinkhorn divergence is a relaxation of the Wasserstein distance, which can be computed considerably faster. For this...

Given n independent replicates of a jointly distributed pair (X,Y) in Rd times R, we wish to select from a fixed sequence of model classes F1,F2... a deterministic prediction rule f: Rd to R whose risk is small. We investigate the possibility of empirically assessing the complexity of each model...

This paper deals with the role of the public debt on the transmission mechanism of monetary policy. An IS function where the Ricardian Equivalence does not prevail and Phillips curve are estimated by full information maximum likelihood (FIML), General Method of Moments (GMM) and bootstrap...

This research seeks to study the factors that enhance or preclude owners of SMEs in Ghana in making risk management decisions. The study was conducted with managers of SMEs in four regions in Ghana. The researchers adopted a quantitative approach and employed STATA 10 and SPSS version 20 in the...

The volume of international trade heavily depends on factors facilitating trade and contributing to reducing its costs. The importance of international logistics as trade facilitator is increasingly emphasised in the literature. The aim of the paper is to assess the level of the impact of...

An important role in ensuring effective forms of management and increasing competitiveness is played by the process of forecasting the activity of the enterprise. This work analyzed the performance of a food industry enterprise, for which a wide range of statistical methods were applied such as...

The process of converting the economy to more sustainable production forms is the essence of bio-economy, currently becoming more and more important in all the European countries. Sustainability is a complex concept that can be quantified through an entire system of indicators. A "marker" of...

This article investigates a network interdiction problem on a tree network: given a subset of nodes chosen as facilities, an interdictor may dissect the network by removing a size-constrained set of edges, striving to worsen the established facilities best possible. Here, we consider a...

We show that the sequential closure of a family of probability measures on the canonical space of càdlàg paths satisfying Stricker’s uniform tightness condition is a weak∗ compact set of semimartingale measures in the dual pairing of bounded continuous functions and Radon measures, that...

A linearization technique for binary quadratic programs (BQPs) that comprise linear constraints is presented. The technique, called “inductive linearization”, extends concepts for BQPs with particular equation constraints, that have been referred to as “compact linearization” before, to...