¿This book contains selected papers presented at the "International Annual Conference of the German Operations Research Society (OR2012)" which was held September 4 -7, 2012 at the Leibniz Universität Hannover, Germany. The international conference, which also serves as the annual meeting of the German Operations Research Society (GOR), attracted more than 500 participants from more than 39 countries. Special attention at the conference was given to the three topics "Energy, Markets and Mobility". The OR2012 conference has addressed these topics from an OR perspective, treating them not only in isolation, but also with respect to their numerous and exciting interconnections, such as new energy for new mobility concepts and new market mechanisms for sustainable energy production to name but a few. The proceedings show that this conference topic is an important and promising area to apply Operations Research. The book also contains numerous papers addressing the full scope of fields in Operations Research.

Award Winners.- Applied Probability and Stochastic Programming, Forecasting.- Continuous Optimization.- Decision Analysis and Multiple Criteria Decision Making.- Discrete and Combinatorial Optimization, Graphs and Networks.- Energy and Environment.- Financial Modeling, Banking and Insurance.- Game theory and Experimental Economics.- Health Care Management.- Information Systems, Neural Nets and Fuzzy Systems.- Managerial Accounting.- Production and Operations Management.- Renewable Energy and New Mobility.- Revenue Management and Pricing.- Scheduling and Project Management.- Simulation and System Dynamics.- Software Applications and Modelling Systems.- Supply Chain Management, Logistics and Inventory.- Traffic and Transportation.