The European Journal of Operational Research (EJOR) publishes high-quality, original papers that contribute to the practice of decision making. EJOR contains the following types of papers: Invited Reviews explaining to the general OR audience the developments in an OR topic over the past five years Case Studies describing the solution to an actual problem Theory and Methodology papers, including applications of theoretical developments without real data but capable of being used in the foreseeable future Articles which focus on the role of the computer Concise articles which contribute to the practice of OR Short Communications. In addition to these types of papers, EJOR contains OR Software News and Book Reviews. Apart from regular issues, EJOR publishes Feature Issues which focus on an OR topic of current interest. Visit the Electronic Service at http://www.elsevier.com/locate/dsw