Ariel Dinar is Distinguished Professor of Environmental Economics and Policy at the School of Public Policy, University of California, Riverside. He served as lead economist on water and climate change for the World Bank. He is the editor-in-chief of the journal Water Economics and Policy. He is an International Fellow of the Center for Agricultural Economic Research of the Hebrew University of Jerusalem, a Fulbright Senior Specialist, and a 2015 Fellow of the Agricultural and Applied Economics Association. Yacov Tsur is the Ruth Ochberg Professor of Agriculture at the Department of Environmental Economics and Management at the Hebrew University of Jerusalem. He publishes widely in economic outlets, served as co-editor of Water Resources Research and of Resource and Energy Economics and has been actively involved in advising Israel's Water Authority and the World Bank on various issues concerning water resource management and regulation.