As global yuan use expands, questions resurface about China’s world-leading forex reserves

A new academic report from Beijing's Renmin University is reigniting a critical debate about the future of China's financial strategy. Authored by Sun Jiaqi of the university's International Monetary Institute, the analysis directly questions the 'optimal size' of China's colossal foreign exchange reserves, which have been the world's largest since 2006. The core argument is that as the Chinese yuan (RMB) gains traction globally for trade settlement and as a store of value, the necessity for maintaining such a massive buffer of foreign currency—heavily weighted in assets like US Treasuries—diminishes. The report advocates for a gradual reduction to a 'moderately ample' level, fundamentally linking the reserve policy to the long-term success of yuan internationalization.

This isn't just an academic exercise; it's a potential signal of a major strategic pivot. The report cites research pointing to an optimal reserve size of approximately 11.49% of GDP for an emerging market economy. For context, China's reserves have historically been viewed as a crucial precautionary tool for financial stability and currency management. However, Sun's analysis posits that a widely adopted yuan could itself perform 'many of the roles once played by foreign reserves.' If acted upon, this shift could have profound implications for global capital flows, affecting demand for US government debt and altering the dynamics of international currency markets. It underscores China's deliberate move to reduce its financial system's dependency on the US dollar.