International financial regulation governs cross-border financial activities and transactions. It aims to mitigate systemic risks, protect consumers, and ensure market integrity. Key concepts include regulatory arbitrage, harmonization, and macroprudential regulation. The field has evolved in response to major financial crises, from the Great Depression to the 2008 global financial crisis. These events have shaped regulatory frameworks like the Basel Accords and led to the creation of institutions such as the IMF, World Bank, and Financial Stability Board.