Sustainability as Intergenerational Fairness: Efficiency, Uncertainty, and Numerical Methods
构建了一个将可持续性定义为代际公平的经济模型，假设每一代都有义务实现代际公平，从而得到一个递归优化问题。该模型能轻松纳入不确定性，并可通过数值方法求解多种设定，讨论了效率与可持续性之间的权衡，并指出在合理条件下，可持续性义务只有在预期经济增长时才能实现。
Abstract This paper presents an economic model of sustainability defined as intergenerational fairness. Assuming that intergenerational fairness is an obligation of each generation, a recursive optimization problem is obtained. The problem has the advantage that uncertainty can readily be incorporated in the model and it can be solved numerically for a wide range of specifications. The possibility of trade‐offs between efficiency and sustainability are discussed. Under plausible conditions, it is shown that a sustainability obligation is met only if there is the expectation of economic growth.