New heuristic methods for the capacitated multi‐facility Weber problem

In this paper we consider the capacitated multi‐facility Weber problem with the Euclidean, squared Euclidean, and ?_p‐distances. This problem is concerned with locating m capacitated facilities in the Euclidean plane to satisfy the demand of n customers with the minimum total transportation cost. The demand and location of each customer are known a priori and the transportation cost between customers and facilities is proportional to the distance between them. We first present a mixed integer linear programming approximation of the problem. We then propose new heuristic solution methods based on this approximation. Computational results on benchmark instances indicate that the new methods are both accurate and efficient. © 2006 Wiley Periodicals, Inc. Naval Research Logistics 2006     

Defense spending and economic growth: Extended empirical analysis for the European Union

Previous empirical studies on the defense spending-economic growth nexus such as Kollias et al. (2007 Kollias, C., N. Mylonidis, and S. Paleologou. 2007. “A panel data analysis of the nexus between defense spending and growth in the European Union.” Defense and Peace Economics 18 (1): 75–85.[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]), Mylonidis (2008 Mylonidis, N. 2008. “Revisiting the nexus between military spending and growth in the European Union.” Defense and Peace Economics 19 (4): 265–272.[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]), Dunne and Nikolaidou (2012 Dunne, J. P., and E. Nikolaidou. 2012. “Defense spending and economic growth in the EU15.” Defense and Peace Economics 23 (6): 537–548.[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) analyzed this relationship in the case of the EU15. This study extends the analysis with the inclusion of more EU members and investigates the long run causal ordering between the two variables. Findings reported herein are not uniformed across all EU members. It is also found that end of Cold War has significant negative impact on defense expenditures of former east-European countries.     

Similar Strategies,Dissimilar Outcomes: an Appraisal of the Efficacy of Turkey's Coercive Diplomacy with Syria and in Northern Iraq

Several countries have used coercive diplomacy to dissuade sponsor-states from supporting non-state armed groups. This study argues that when a sponsor-state and a non-state armed group's common identity creates common aspirations and motives, coercive diplomacy towards the sponsor-state is unlikely to succeed in the long-term. To assess its efficacy, this research examines Turkey's strategy towards Syria in 1998 and in northern Iraq from 2007 onwards. Under the abovementioned conditions, it concludes that there has been no conclusive evidence for Turkey's assumption that its approach would succeed; therefore, it should utilise alternative strategies to coercive diplomacy.