Changes in monetary policy in the United States have a significant impact on global markets. The US Central Bank, the Federal Reserve (Fed), plays a key role in setting this policy, especially through interest rates and other financial measures. When the Fed raises interest rates, it usually aims to curb inflation, promote domestic economic stability, and influence international capital flows. Higher interest rates tend to strengthen the value of the US dollar. This attracts foreign investors because of the higher yields on assets denominated in dollars, such as government bonds. Additionally, a stronger dollar could weigh on US companies operating internationally, as their products become more expensive for overseas consumers. As a result, profits of companies that depend on exports may decline, which in turn affects the stock market and the domestic economy. Conversely, when the Fed lowers interest rates, liquidity increases, encouraging domestic borrowing and investment. Global markets are likely to respond positively, as consumer and business spending increases. Global financial market involvement will increase, with investors seeking higher risk assets, such as shares and commodities. The influence of Fed interest rates also spreads to other countries. When US monetary policy changes, countries closely linked to the US dollar often experience currency volatility. Developing countries may face difficulties in coping with sudden capital outflows, which could lead to currency devaluation and disrupt the stability of their economies. Global inflation is also influenced by US monetary policy. As the Fed tightens policy to contain inflation, other countries may be forced to follow similar steps to maintain the currency’s attractiveness and control domestic inflation. This process could lead to a global economic slowdown if too many countries implement tough policies simultaneously. Furthermore, international trade is affected by Fed policy. For example, if the dollar strengthens, the purchasing power of US consumers also increases, which can lead to increased imports of goods from other countries. Conversely, when the dollar weakens, US goods become more competitive in international markets, triggering an increase in exports. The relationship between changes in US monetary policy and global markets is a complex cycle. Investors and analysts around the world monitor the Fed’s every move closely, as the impact could spill over into other sectors, including commodities, stocks and debt. Moreover, US monetary policy remains the benchmark for many countries in formulating their economic strategies. Therefore, a deep understanding of the impact of changes in monetary policy in the US is very important for global market players. In a broader context, these policies not only affect the US domestic economy but also shape the interconnected global economic landscape.