Transparency, Policy Surveillance, and the Comparison of Mitigation Efforts

Joseph Aldy, William Pizer and Keigo Akimoto ()
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Keigo Akimoto: Research Institue of Innovative Technology for the Earth

RFF Working Paper Series from Resources for the Future

Abstract: This paper synthesizes the work in a research program focused on the transparency and comparability of mitigation efforts in multilateral climate change policy. We take as our starting point the emerging international architecture, which creates demand for practical mechanisms to compare domestic efforts to mitigate global climate change. How do countries decide whether and to what degree pledges by their peers—often expressed in different forms that stymie obvious apples-to-apples comparison—are sufficient to justify their own actions now and more ambitious actions in the future? We describe a number of desirable features of metrics that might be used for ex ante comparisons of proposed pledges and ex post assessments of subsequent actions delivering on those pledges. Such metrics should be comprehensive, measurable, and universal. In practice, however, no single metric has all these features. We suggest using a collection of metrics to characterize and compare mitigation efforts, akin to employing a suite of economic statistics to illustrate the health of the macroeconomy. We illustrate the application of a suite of metrics to several countries’ mitigation pledges using four modeling platforms. We also describe how countries increasingly employ complex suites of policies, rather than the cost-effective, economy-wide policies modelers are used to examining. This suggests new challenges and opportunities to use modeling tools to evaluate these realistic policy contexts.

Keywords: emissions mitigation; international environmental agreements; modeling analysis; policy surveillance; comparability of effort; nationally determined contributions (search for similar items in EconPapers)
Date: 2016-11-07
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