An Analysis of the IMF’s International Carbon Price Floor

The International Monetary Fund (IMF) has proposed an International Carbon Price Floor (ICPF) arrangement among six major emitting economies (the US, EU, UK, Canada, China, and India) to scale up global climate mitigation action. Our quantitative analysis of the IMF’s ICPFs indicates that, compared to the committed policies of National Determined Contributions (NDCs), differentiated price floors are non-binding for developed countries – and therefore have a limited impact on their climate actions. However, for developing countries (e.g. China and India), the ICPFs effectively translate into substantial increases in carbon prices. Essentially, the ICPFs place additional responsibilities of emission reductions and economic costs fully on China and India. Given this gap between the participation incentives of developed and developing economies, we believe that the ICPF arrangement, in its current form, is unlikely to be adopted by major economies. To address this, we recommend that the IMF devote efforts to: (1) estimating the price equivalents of non-price policy instruments, as well as re-calibrating the desirable floors for broadly defined carbon prices; and (2) considering options to redistribute the economic benefits between developed and developing countries by increasing the availability of climate mitigation funds and low-carbon technologies to developing countries.