Economic sanctions are typically imposed as coercive measures to restrict a target’s economic activities, with the aim of achieving foreign policy and national security objectives. The United States has employed many methods of economic sanctions, such as imposing import and export limitations, withholding foreign aid and investment, seizing foreign assets, and forbidding its nationals from doing economic transactions with sanctioned individuals and companies. Financial sanctions encompass a range of measures that particularly limit the movement of funds and other forms of asset value to countries, companies, and individuals subject to sanctions. These measures have a wide-reaching impact as they can freeze assets, prohibi t or restrict financial transactions, and even disrupt the settlement of import and export activities. 

The utilization of economic sanctions as a geopolitical instrument has a lengthy historical background, but, the current impact and efficacy of U.S. sanctions are unparalleled. Although countries other than the United States have the authority to enforce tariffs, import and export controls, and other non-tariff barriers, they lack the ability to independently limit access to the global financial system, unlike the United States. Therefore, the secondary sanctions imposed by the United States, which limit dollar transactions, enables the United States to exert its influence on a worldwide scale through working in conjunction with other economic restrictions, such as export controls.

Amidst the escalating strategic rivalry between the United States and China, the United States is broadening both the extent and substance of its financial sanctions. In the ongoing competition for technological supremacy between the United States and China, the United States can leverage its influence in the financial sector to impede China’s access to the necessary resources for the advancement of its own high-tech sectors. Furthermore, the United States has the ability to intervene in transactions occurring within the supply chain of high-tech enterprises that utilize U.S. currency, in addition to imposing restrictions on domestic U.S. companies selling components to China. 

Chapter 2 explores the legal foundation, governance, and enforcement procedures of U.S. financial sanctions imposed on China. It also provides an account of the present situation and future possibilities of U.S. financial sanctions against China. It concludes that U.S. financial sanctions are based on a legal foundation and are implemented through a coordinated process among Congress, the President, and key executive branch agencies. While the United States has a long history of using financial transaction sanctions to address violations of international norms, it has recently adopted financial sanctions to block the flow of funds, including equity investments in certain Chinese companies, in response to China’s technological rise and national security threats.

Chapter 3 examines China’s response. In China, finance is an important industry that supports economic growth and is still one of the fastest-growing industries in the country. Chinese companies also rely on the U.S.’s advanced financial system to finance their businesses and invest abroad. However, with the U.S. utilizing sanctions as one of its tools, China has been forced to respond and prepare for external shocks to its financial industry. Chapter 3 analyzes China’s response to the recent U.S. financial sanctions, categorized into short-, medium-, and long-term strategies. It analyzes China’s short-term responses to U.S. financial sanctions in terms of its position statements and the adoption and application of laws and regulations in response to foreign sanctions; its medium-term responses in terms of standardizing overseas listings and diversifying financing sources; and its countermeasures against U.S. financial sanctions in terms of developing the renminbi international payment system and expanding capital market capacity. 

Chapter 4 examines the economic consequences of a protracted period of significant financial de-globalization caused by financial sanctions between the United States and China. In this context, “substantial” refers to a decline in local investments abroad and foreign investments within the country. We aimed to analyze the economic consequences of a country’s gradual shift from an open to a closed economy, where foreign capital inflows are replaced by domestic investments. Our research indicates that a reduction in trade openness has a detrimental effect on economic growth, whereas the influence of financial openness is not statistically significant. Nevertheless, if there is a rise in fragmentation within the global economy, leading to limitations on capital investment in China to specific nations, namely an increase in financial concentration, it would adversely affect economic growth. In addition, we analyzed the current level of financial interconection between the United States and China in order to assess the immediate expenses associated with an escalation of hostilities and the severance of their financial systems.

Even if the introduction of financial sanctions between the U.S. and China reduces financial globalization in a de jure sense, it is difficult to say with certainty that it will reduce outward investment globally or between the two countries in a de facto sense. However, it is possible that competition in the financial sector between the U.S. and China could reach new extremes. In response to Russia’s invasion of Ukraine in 2022, Western countries such as the U.S. and EU took measures such as freezing the Russian Central Bank’s foreign exchange reserves and excluding major financial institutions and corporations from SWIFT. Under extreme conditions, such as a Chinese invasion of Taiwan, it is conceivable that the U.S. could impose such measures on China, and that China would be forced to dramatically reduce its reliance on the dollar payment system, even at the cost of significant short-term losses, and stick to the RMB international payment system.

However, it is unlikely that the U.S. would want to see China accelerate the internationalization of the RMB and the internationalization of the RMB necessitates consensus among nations, rather than solely China’s endeavors. Consequently, a scenario of intense confrontation or competition in the financial sector between the United States and China is unlikely to occur. The United States is likely to choose a course of action that involves strengthening regulations on financial transactions involving specific high-tech or strategic goods. In this scenario, our government will need to devise strategies to minimize the negative impact on our industries, while our companies will need to take measures to avoid being subjected to sanctions by improving their own compliance.