Core Viewpoint - The dominance of the US dollar as the global reserve currency continues to pose challenges for other economies, despite the emergence of alternative currencies like the euro and the renminbi [2][3][4]. Group 1: Historical Context - The end of the Bretton Woods system in 1971 marked a significant shift, with the US unilaterally decoupling the dollar from gold due to persistent deficits and inflation [2]. - The dollar has maintained its status as the first true global reserve currency, unlike previous dominant currencies which were limited to their regions [5][6]. Group 2: Current Dollar Dominance - The US GDP accounts for approximately 25% of the global economy, yet the dollar represents over 40% of international trade and 60% of foreign exchange reserves [6][7]. - The deep liquidity of the dollar market facilitates its use as a vehicle currency, making it the preferred medium for international transactions [6][7]. Group 3: Challenges for Other Currencies - The euro, despite being the second-largest currency, struggles to achieve global status and is primarily used within Europe [12][20]. - Emerging markets have adopted managed floating exchange rate systems to mitigate volatility, learning from past financial crises [13][14]. Group 4: US Fiscal Concerns - The US faces significant fiscal challenges, with federal debt nearing 100% of GDP and projected to rise to 166% in 30 years under current policies [14][15]. - Political polarization hampers effective fiscal management, leading to a consensus of "deficits don't matter" among policymakers [15][19]. Group 5: Future of the Dollar - Concerns about the sustainability of the dollar's dominance are growing, with potential risks including higher interest rates and inflation [19][20]. - The renminbi's internationalization is ongoing, but significant barriers remain, including the need for capital account liberalization and legal market development [21].