Acknowledgements
We would like to express our sincere thanks to all the contributors, as well as the large number of very experienced professionals who assisted in the important review process. We particularly thank Quinn Bernier for reviewing all papers on clarity and consistency. Thanks are due as well to the editor-in-chief, Professor James E. Nickum, for his kind support in editorial management. We acknowledge funding support from USAID through the Pakistan Strategy Support Program (managed by the IFPRI under the CGIAR Research Program on Policies, Institutions and Markets) and support from the IWMI through the CGIAR Research Program on Water, Land and Ecosystems. Both were essential in putting this special issue together. Shahid Ahmad provided valuable input to the overview section.