Summary

Council on Foreign Relations backgrounder providing a comprehensive overview of cryptocurrencies, their policy implications, government responses, and the CBDC debate. Written in September 2021, updated through January 2024. Covers cryptocurrency fundamentals, DeFi, regulatory approaches, illicit use, environmental concerns, and the CBDC landscape.

Key Points

  • Cryptocurrencies collectively exceeded $1 trillion market cap by 2021; by mid-2023, ~17% of U.S. adults had invested in or used crypto.
  • Bitcoin uses proof-of-work; Ethereum and others use proof-of-stake (less energy-intensive).
  • DeFi (“decentralized finance”) aims to replicate financial services (borrowing, lending, trading) without traditional intermediaries via smart contracts.
  • Criminal use: ransomware attacks, drug cartels, darknet markets, North Korea ($1B+ hacked in 2022), Iran/Russia sanctions evasion.
  • Environmental: Bitcoin mining uses more electricity than many countries.
  • U.S. SEC approved first Bitcoin ETFs in January 2024.
  • January 2024: 130 countries exploring CBDCs; 11 fully launched (all small/low-income, 10 in Caribbean).
  • China’s digital yuan: launched but represents 0.1% of central bank cash as of 2023.
  • Anti-CBDC argument: would centralize enormous power, data, and risk in one institution; could displace commercial banks.
  • El Salvador’s 2021 Bitcoin legal tender: “less than 15 percent of people had used it for that purpose in 2023.”

Newsletter Angles

  • CFR’s framing of crypto as a geopolitical issue (sanctions evasion, North Korea hacking) rather than purely a financial one — state actors using crypto to escape dollar hegemony.
  • The CBDC-vs-stablecoin choice is a power architecture question: who controls the money layer? Government (CBDC) or private regulated entities (GENIUS Act approach)?
  • “The primacy of the U.S. dollar has provided the United States unrivaled power to impose crippling economic sanctions — which states including Iran, North Korea, and Russia are increasingly using cryptocurrency to evade.” — this is the real stakes.

Entities Mentioned

  • El Salvador — legal tender case study cited
  • Federal Reserve — exploring CBDC; multiple officials quoted on crypto regulation
  • European Union — regulatory context; China’s crypto ban also referenced

Concepts Mentioned

Quotes

“The primacy of the U.S. dollar has provided the United States unrivaled power to impose crippling economic sanctions—which states including Iran, North Korea, and Russia are increasingly using cryptocurrency to evade.”

“If cryptocurrencies become a dominant form of global payments, they could limit the ability of central banks, particularly those in smaller countries, to set monetary policy through control of the money supply.”

Notes

CFR backgrounder — authoritative but mainstream establishment perspective. Written 2021, updated through 2024. The geopolitical framing (sanctions evasion, state actors) is CFR’s distinctive contribution vs. purely economic analysis.