This book presents interdisciplinary approaches towards achieving regional sustainability. The relevance of interdisciplinary research and its consequences for economic research into the environment are elaborated, and new approaches are developed to integrate knowledge from ecological and social sciences into economic research. Regional Sustainability includes the development of theoretical concepts as well as applied regional case studies relating to nature conservation and agricultural policies, coastal management and air pollution problems. Centered around the themes of decision-making processes, modelling as support for policy analysis and the evaluation of policies, it successfully addresses problems facing researchers and policy-makers in the context of regional sustainable development. The book pays special attention to human behaviour and stakeholders in decision-making processes, and contributes to the transition from ecological economics to socio-ecological economics. Keywords: Regional sustainability, Sustainable development, Ecological economics Contents: Introduction: I. Ring, B. Klauer, F. Wätzold: Towards regional sustainability: the need for interdisciplinary and applied research.- Decision making for regional sustainability: F. Rauschmayer: Decisions in the context of sustainable development: ethics and implementation of multi- criteria analysis; B.Å. Månsson: Stakeholder approaches to intertemporal valuation; R.K. Turner: Sustainable development of society, economy and environment: consequences for integrated coastal management; S. O'¤ Hara, V. Shandas, J. Vazquez: Communicating sustainable development options - who evaluates the trade-offs?- Modelling as support for policy analysis: K. Frank, I. Ring: Model-based criteria for the effectiveness of conservation strategies - an evaluation of inventive programmes in Saxony, Germany; E.C. Schmieman, E.C. van Ierland: Joint abatement strategies: a dynamic analysis of acidification and tropospheric ozone; M.J. Kotchen: Incorporating resistance in pesticide management: a dynamic regional approach; A. Kampas, B. White: Some evidence of the relative efficiency of multiple-instrument policies for controlling agricultural nonpoint pollution: an application to nitrate pollution.- Evaluating policies for regional sustainability: P. Hellegers: The role of the Common Agricultural Policy in maintaining High Nature Value farming systems in Europe; T.J. Centner, L.F. Gunter: Pesticide collection programs: a proposition to prevent furture contamination; G. Kneer: Nature conservation in urban landscapes. Implementation and acceptance issues; S. Greiner: Local Agenda 21 as an intergovernmental approach to sustainable development: a promising new strategy?- Outlook: K. Bizer: Perspectives for economic research into sustainable policies.