This study proposes a novel method for portfolio selection/decision making that combines the Portfolio Theory (PT), Analytic Hierarchy Process (AHP) and Data Envelopment Analysis (DEA) cross-efficiency technique. It takes into account the profits, risks and proficiency of a portfolio and is...

Purpose: This research presents a framework that allows project managers to predict the next critical paths (CP(s)) and to take extra care when planning and executing those activities that have the potential to cause changes in a project's current CP(s). Design/methodology/approach: The method...

Purpose The purpose of this paper is to evaluate the existing scenarios for 3D printing (3DP) in order to identify the “white space” where future opportunities have not been proposed or developed to date. Based around aspects of order penetration points, geographical scope and type of...

Purpose: In a simple reciprocal dumping model of trade, this study scrutinizes the strategic role of trade and commodity taxes as environmental instruments when consumption of an imported product generates pollution. The results suggest that for sufficiently small values of the marginal...

Abstract This paper shows that vertical foreign direct investment will reduce prices but the aggregate welfare effect is unambiguously positive only under free market entry. Using a standard model of imperfect competition, we develop this result by considering two different cases. In the first...

Zusammenfassung In diesem Artikel wird ein Überblick über neuere Entwicklungen bei empirischen allgemeinen Gleichgewichtsmodellen (EAG) gegeben, wobei walrasianische Modelle weitgehend ohne makroökonomische Aspekte im Vordergrund stehen. Zunächst wird eine typische EAG-Modellstruktur...