Discounting across space and time in climate change assessment

Abstract

This dissertation introduces a groundbreaking framework that integrates spatial factors into discounting, challenging the traditional focus solely on time. By unifying the concepts of time and space discounting, the research reveals shared reasons for discounting across both dimensions. Empirical studies demonstrate the significant spatial components of human discounting while acknowledging its limitations as a comprehensive model for human values. Applied research analyzes three cases of climate change adaptation - crop indemnity payments, the Commonwealth of Nations, and the nexus between climate change, migration, and conflict - highlighting the detrimental effects of neglecting spatial considerations in project evaluations. This dissertation underscores the crucial role of space in discounting, both as an intellectual construct and a practically relevant concept, emphasizing the need for a transformative approach in discounting science and policy.