Western Hemisphere > Uruguay

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Mr. Itai Agur, Jose Deodoro, Xavier Lavayssière, Soledad Martinez Peria, Mr. Damiano Sandri, Hervé Tourpe, and Mr. German Villegas Bauer
Whether in crypto assets or in CBDCs, design choices can make an important difference to the energy consumption of digital currencies. This paper establishes the main components and technological options that determine the energy profile of digital currencies. It draws on academic and industry estimates to compare digital currencies to each other and to existing payment systems and derives implications for the design of environmentally friendly CBDCs. For distributed ledger technologies, the key factors affecting energy consumption are the ability to control participation and the consensus algorithm. While crypto assets like Bitcoin are wasteful in terms of resources, other designs could be more energy efficient than existing payment systems.
Gabriel Soderberg, Ms. Marianne Bechara, Wouter Bossu, Ms. Natasha X Che, Sonja Davidovic, Mr. John Kiff, Ms. Inutu Lukonga, Mr. Tommaso Mancini Griffoli, Tao Sun, and Akihiro Yoshinaga
Central banks are increasingly pondering whether to issue their own digital currencies to the general public, so-called retail central bank digital currency (CBDC). The majority of IMF member countries are actively evaluating CBDCs, with only a few having issued CBDCs or undertaken extensive pilots or tests. This paper shines the spotlight on the handful of countries at the frontier in the hope of identifying and sharing insights, lessons, and open questions for the benefit of the many countries following in their footsteps. Clearly, what can be gleaned from these experiences does not necessarily apply elsewhere. The sample of countries remains small and country circumstances differ widely. However, the insights in this paper may inspire further investigation and allow countries to gain time by building on the experience of others. Importantly, the purpose of this paper is not to evaluate the courses taken by different jurisdictions, but to study and discuss their key experiences and lessons. The paper studies six advanced CBDC projects, drawing on collaboration and exchanges with the respective central banks to get insights beyond what has previously been published. Unless a specific published source is cited, all information stems from interviews and workshops with members of CBDC project teams in each jurisdiction.