Assessing the Capacity of Adaptive Policy Pathways to Adapt on Time by Mapping Trigger Values to Their Outcomes

Luciano Raso, Jan Kwakkel and Jos Timmermans
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Luciano Raso: Department of Multi-Actor Systems, Delft University of Technology, Jaffalaan 5, 2628 BX Delft, The Netherlands
Jan Kwakkel: Department of Multi-Actor Systems, Delft University of Technology, Jaffalaan 5, 2628 BX Delft, The Netherlands
Jos Timmermans: Department of Multi-Actor Systems, Delft University of Technology, Jaffalaan 5, 2628 BX Delft, The Netherlands

Sustainability, 2019, vol. 11, issue 6, 1-16

Abstract: Climate change raises serious concerns for policymakers that want to ensure the success of long-term policies. To guarantee satisfactory decisions in the face of deep uncertainties, adaptive policy pathways might be used. Adaptive policy pathways are designed to take actions according to how the future will actually unfold. In adaptive pathways, a monitoring system collects the evidence required for activating the next adaptive action. This monitoring system is made of signposts and triggers. Signposts are indicators that track the performance of the pathway. When signposts reach pre-specified trigger values, the next action on the pathway is implemented. The effectiveness of the monitoring system is pivotal to the success of adaptive policy pathways, therefore the decision-makers would like to have sufficient confidence about the future capacity to adapt on time. “On time” means activating the next action on a pathway neither so early that it incurs unnecessary costs, nor so late that it incurs avoidable damages. In this paper, we show how mapping the relations between triggers and the probability of misclassification errors inform the level of confidence that a monitoring system for adaptive policy pathways can provide. Specifically, we present the “trigger-probability” mapping and the “trigger-consequences” mappings. The former mapping displays the interplay between trigger values for a given signpost and the level of confidence regarding whether change occurs and adaptation is needed. The latter mapping displays the interplay between trigger values for a given signpost and the consequences of misclassification errors for both adapting the policy or not. In a case study, we illustrate how these mappings can be used to test the effectiveness of a monitoring system, and how they can be integrated into the process of designing an adaptive policy.

Keywords: climate change; adaptation; monitoring; flood protection; Afsluitdijk; extremes; changing extremes; adaptive policies; resilience; risk management (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
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