The rise of digital currencies represents far more than a technological or speculative phenomenon. It signifies a profound shift in sovereign credit systems, the future of monetary frameworks, and the evolution of global governance models.
In 2024, the global crypto asset landscape underwent a historic transformation. The U.S. Securities and Exchange Commission approved the first batch of spot Bitcoin exchange-traded funds (ETFs), marking the first large-scale acceptance of native digital assets by the traditional capital market system. Almost simultaneously, the European Parliament passed the Markets in Crypto-Assets (MiCA) Regulation with broad support, establishing unified legal standards for the issuance, trading, and reserve management of stablecoins for the first time. These actions signal a clear message: cryptocurrency is no longer a fringe innovation but a new variable entering the core of national strategy and the international financial system.
The challenges and impacts of encrypted digital currencies on global financial governance extend beyond technical or speculative concerns. They touch upon the very foundations of monetary sovereignty and the architecture of cross-border finance.
Recognizing the Positive Aspects of Digital Currencies
While the rapid development of digital currencies presents several major challenges to global financial governance, it is essential to recognize the significant opportunities they bring—especially in financial inclusion, market efficiency, and innovation incentives.
Encouraging Innovation and Competition
The intense competition within the digital currency space has accelerated technological iteration. Following Ethereum, emerging public chains like Solana (SOL) and Sui have risen swiftly, offering significant improvements in blockchain performance, transaction throughput, and speed. This competitive environment not only speeds up the evolution of underlying blockchain architecture but also promotes diversification within the global digital economy.
This innovation is not confined to fintech. It has sparked cross-sector diffusion. For example, Ethereum’s initial design aimed to realize economist Friedrich Hayek’s concept of “denationalization of money” through programmable smart contracts—allowing any entity or individual to issue their own currency and let market competition select the most stable and reliable forms of money. Over time, however, Ethereum’s smart contract functionality has been widely applied in areas like digital collectibles and metaverse platforms, giving rise to a decentralized on-chain digital asset market.
This trend indicates that breakthroughs in crypto technology are permeating broader application fields, acting as a key engine for the next digital industrial revolution.
Enhancing Financial Inclusion
Traditional banking systems often fail to cover low-income groups and remote regions due to high costs and risk management challenges. Blockchain technology lowers the barriers to financial services, enabling anyone with a smartphone to access financial tools equitably. This has significantly improved financial accessibility, particularly in regions like Africa, South Asia, and Latin America, where traditional services are scarce.
As blockchain technology continues to advance, the transaction and operational costs associated with digital currencies have decreased substantially. This creates new possibilities for the internationalization of currencies like the Chinese yuan. By offering low-cost, localized blockchain-based financial services using a digital yuan, China could achieve international breakthroughs in underserved markets.
Building a digital yuan payment system in countries with weak financial infrastructure, unstable national currencies, and limited dollar adoption could provide residents with stable and efficient payment and storage methods. This approach could foster habitual use of the yuan and expand its international influence, capturing initiative in the future digital finance landscape.
Improving Market Efficiency
The decentralized nature of blockchain technology greatly enhances market operational efficiency. Decentralized finance (DeFi) platforms use smart contracts to directly connect supply and demand for capital, avoiding intermediate costs and significantly improving capital allocation efficiency.
However, these opportunities are not equally available to all nations. Technological innovation tends to benefit developed economies with strong financial infrastructures first. For emerging economies with weaker financial systems and limited governance capacity, digital currencies may introduce new risks to existing monetary systems.
As global digital assets permeate cross-border trade and stablecoins become common means of storage and transaction, vulnerable economies that rely heavily on their national currencies are facing increasing erosion of monetary sovereignty. A “digital divide” is emerging between global fintech advances and local financial governance capabilities. In many developing countries, this gap manifests as “currency substitution.”
Stablecoins and the Complexity of Dollar Hegemony
Stablecoins are a type of encrypted digital currency. The dollar-based stablecoin system reinforces the global status of the U.S. dollar, enabling further penetration into emerging economies and strengthening dollar hegemony. At the same time, these blockchain-based dollar instruments operate outside traditional U.S. regulatory frameworks, introducing endogenous instability into the dollar system.
Most centralized stablecoins are issued based on a “100% reserve” principle. This means each stablecoin in circulation (like USDT or USDC, the two largest by market share) is theoretically backed by an equivalent amount of low-risk dollar assets such as cash, short-term U.S. Treasuries, or commercial paper. This “on-chain digital dollar” model ties stablecoins closely to U.S. money markets.
Multiple studies have found that the issuance and redemption of stablecoins are significantly correlated with dynamics in the U.S. short-term financing market. Adjustments in stablecoin reserve assets have a noticeable marginal impact, particularly in the commercial paper market.
This implies that the expansion and contraction of stablecoin issuance not only reflect demand fluctuations in the crypto market but may also affect the stability of U.S. money markets. Large-scale on-chain redemptions or a run on stablecoins could force issuers to liquidate their holdings of short-term Treasuries or commercial paper, potentially causing liquidity shocks in traditional markets.
This mechanism strengthens the dollar system by providing a new channel for global financing (such as through the sale of U.S. government bonds) but also turns stablecoins into a risk amplifier for that system.
As the scale of stablecoins grows, so does their marginal impact on global dollar liquidity, creating potential spillover risks to financial markets worldwide. This cross-market, cross-sovereign, cross-platform financial asset is blurring traditional boundaries of monetary policy and regulatory jurisdiction.
With the U.S. dollar as the anchor asset, stablecoins not only export the dollar’s liquidity but also transmit U.S. policy uncertainty. This impact exceeds the regulatory capacity of any single nation and poses new challenges to the stability and governance of the global monetary system.
In this context, building an inclusive, coordinated, and enforceable global digital currency governance mechanism has become an unavoidable imperative—especially in a time of heightened geopolitical tensions and scarce global consensus.
Uneven Development and Currency Substitution Risks
In emerging economies with insufficient financial governance and high exchange rate volatility, encrypted digital currencies have quickly become mainstream financial tools for younger populations. A clear trend of “dollarization” or “stablecoinization” has emerged.
Research shows a significant positive correlation between exchange rate volatility and stablecoin usage. In countries like Nigeria, Argentina, and India, a growing number of residents are choosing stablecoins over their national currencies. This is not merely speculative behavior but a rational response to the loss of purchasing power and policy failures affecting local money.
Fundamentally, currency substitution reflects the fragility of the domestic monetary system and failures in financial governance. Government-imposed capital controls, hyperinflation, and currency devaluation drive individuals to seek more stable, convenient, and reliable stores of value.
Therefore, while digital currencies promote financial inclusion, they also pose significant challenges to monetary sovereignty. Stablecoins, in particular, are often pegged to strong sovereign currencies like the U.S. dollar, creating a hidden mechanism for exporting “digital dollars.”
Encrypted digital currencies and stablecoins are not only filling gaps in traditional financial services at a technical level but are also gradually taking on core financial functions such as value storage, cross-border payments, and safe-haven assets. As these “technologically neutral” tools gain popularity worldwide, the power to issue money and anchor value is gradually escaping the control of national borders and entering a platform-based, de-sovereign competitive arena.
This is leading to a profound redefinition of monetary sovereignty. It is no longer the exclusive privilege of central banks but is increasingly shaped by algorithmic governance, cross-border platforms, technical standards, and geopolitical fragmentation.
Exploring Global Governance Paths in a Geopolitically Divided World
Hong Kong is also exploring regulations, trading mechanisms, and legislation for crypto assets. In 2024, the Securities and Futures Commission (SFC) of Hong Kong launched a licensing system for virtual asset trading platforms and approved the first batch of licensed exchanges. This marked a substantive step toward “legalization, institutionalization, and regulatability” of crypto assets in the region.
Shortly afterward, the Hong Kong Monetary Authority (HKMA) issued a consultation paper on the regulatory framework for stablecoins, proposing a series of requirements for issuers of fiat-referenced stablecoins. These include capital requirements, reserve audits, and transparency disclosures.
Hong Kong also announced it would advance a pilot program for the digital Hong Kong dollar (e-HKD) and participate in the “mBridge” project—a multi-central bank digital currency (CBDC) cooperation trial with countries including the UAE, Thailand, and Singapore. These moves demonstrate Hong Kong’s strategic intention to become an “Asian crypto-financial hub.” In May 2024, Hong Kong’s Legislative Council passed the Stablecoin Bill in its third reading, making it the first jurisdiction in the Asia-Pacific region to establish a stablecoin licensing system.
The core challenge for global governance of digital currencies lies in geopolitical competition and fragmentation. Historical experience may offer a guide for digital currency governance.
First, starting from “points of common interest” and avoiding excessive ideological entanglement may help. For example, cross-border regulation of stablecoins and the fight against money laundering and terrorist financing are areas where national interests highly align. This common ground could serve as a starting point for practical cooperation between major powers like the U.S. and China.
Second, constructing a more flexible governance architecture may be more effective than striving for a unified global framework. Allowing countries to implement differentiated regulations based on minimum global standards could create a “baseline governance” model for international cooperation.
Third, informal dialogue mechanisms, academic exchanges, and think tank collaborations can gradually build mutual trust and reduce the difficulty of cooperation.
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Frequently Asked Questions
What are the main benefits of digital currencies for emerging economies?
Digital currencies can significantly improve financial inclusion by providing access to banking services for unbanked populations. They also lower transaction costs and can serve as a stable store of value in countries with high inflation or weak local currencies.
How do stablecoins affect the U.S. dollar’s global role?
Stablecoins pegged to the U.S. dollar extend its reach into digital finance, reinforcing dollar hegemony. However, they also introduce new risks by creating a parallel system that operates outside traditional banking regulations, potentially amplifying financial instability.
Can digital currencies like CBDCs enhance a country’s monetary sovereignty?
Yes, central bank digital currencies (CBDCs) can strengthen monetary sovereignty by offering a state-backed digital payment option. This can reduce reliance on foreign stablecoins and help maintain control over the national monetary system.
What is currency substitution and why is it a concern?
Currency substitution occurs when residents prefer a foreign currency or stablecoin over their national money due to instability or loss of confidence. This undermines local monetary policy, reduces seigniorage revenue, and can lead to a loss of economic sovereignty.
How can international cooperation in digital currency governance be improved?
Cooperation can be enhanced by focusing on shared goals such as preventing illicit finance, establishing common technical standards, and creating flexible frameworks that allow for national adaptations while maintaining global security baselines.
What role does China play in the future of digital currency governance?
China is actively developing its digital yuan and supporting Hong Kong’s emergence as a regulated crypto hub. Its approach could offer alternative models for digital currency integration and influence future governance frameworks, especially in Asia and emerging markets.