Dirk Wolfson shows how sustainable development may be organized, valued and distributed by introducing situational contracting as an interactive and contextual mode of governance. Throughout the entire process of policy-making and delivery, situational contracts assign rights and responsibilities, fortifying the weakest link in democracy: the way in which political systems mind the preferences and ambitions of the people. This book importantly recognizes that efficiency and distribution are two sides of a coin that can be distinguished but not separated. Situational contracting does not judge distributional concerns, but reveals how parties in supply and demand think about fairness. It provides a road map for where we want to go, serving the prevailing ideology in implementing the trade between efficiency and fairness, like a democratic institutional arrangement should.