Analysis
Paradigm Shift in Exchange Rate Volatility Under Geopolitical Fragmentation: Practical Implementation Paths for Asian Regional Policy Frameworks
This paper explores how exchange rate volatility evolves against the backdrop of increasing geopolitical fragmentation risks from the perspective of Asian macroeconomic research. It analyzes the structural shift from the weakening of traditional trade channels to the strengthening of financial channels, and draws on how the Asian Central Bank has combined foreign exchange intervention with market deepening in practice to build a framework adaptable to new macroeconomic policies.
In the current macroeconomic environment characterized by increasing geopolitical fragmentation risks, exchange rate management is no longer just a monetary policy tool but a key indicator of regional macroeconomic stability and policy effectiveness. Observations from the Asia+3 Macroeconomic Research Office (AMRO) suggest that experience over the past thirty years after the Asian financial crisis indicates that even under more resilient regulatory frameworks, market pressures can lead to volatile exchange rate fluctuations. The driving forces behind this volatility are undergoing profound structural changes.
Firstly, it has been observed that the volatility of the US dollar has shifted from traditional macroeconomic cyclical shocks to being more closely linked to geopolitical uncertainties. In the past, sharp exchange rate fluctuations were mainly associated with traditional macroeconomic events like global financial crises. However, in the current environment, investors' concerns about the stability of US policy and the risk of global conflict have significantly enhanced the synchronicity between dollar volatility and geopolitical events. When uncertainty originates externally, capital tends to seek safe-haven assets in the US dollar, leading to a structural increase in dollar volatility, signaling a fundamental shift in the source of exchange rate risk.
Secondly, there is a misalignment between the structural differentiation of regional economic activities and exchange rate drivers. Regional trade and economic activities are undergoing deep regionalization transformation, with deepening interregional trade, supply chain integration, and enhanced synchronicity of economic cycles, which should ideally internalize risks through regional cooperation. However, despite improvements in the "internal circulation" and synchronicity of regional economies, exchange rate performance remains highly dollar-centric. This indicates that even as economic ties within the region grow closer, the structural dependence of the global financial system, particularly exposure to the dollar, remains the dominant factor determining the direction of regional currency exchange rates.
This structural misalignment suggests that traditional trade-driven transmission channels are weakening, while finance-driven transmission channels are strengthening. This means that the mutual influence between economies within the region is more reflected through global capital flows and dollar supply-demand dynamics, rather than traditional regional trade balance mechanisms. Therefore, policy formulation needs to recalibrate the pathways of risk transmission.
The experience of Asia+3 provides an operational roadmap: when facing this new risk structure, exchange rate management should move beyond reliance on a single tool. Drawing on the normative framework of the International Monetary Fund (IMF) and the global financial cycle channel analysis of the Bank for Asia (BIS), Asian regional central banks demonstrate a pragmatic combination. Specifically, in non-acute amplification events, policy should focus on building long-term, non-depleting stability barriers through market deepening. In cases of acute shocks causing sharp exchange rate fluctuations, tactical foreign exchange intervention (FXI) can be employed to stabilize the situation.
This combination of "structural stability and tactical intervention" is a pragmatic path to responding to exchange rate volatility in the context of geopolitical fragmentation.When acute shocks occur due to sharp exchange rate fluctuations, tactical foreign exchange intervention (FXI) can be employed to stabilize the situation.
This combination of "structural stability and tactical intervention" is a pragmatic path to respond to exchange rate volatility in a context of geopolitical fragmentation. It requires policymakers to both understand how global financial cycles amplify shocks and to leverage regional cooperation and market foundations to absorb and digest external shocks in a more resilient manner, thereby effectively managing exchange rate risks without sacrificing regional economic integration.
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