The Reserve Bank of Australia (RBA) is facing a new challenge as it grapples with the increasing frequency of supply shocks, a trend that has been exacerbated by geopolitical tensions and extreme climate events. This shift has prompted the RBA to invest heavily in new economic models, research, and frameworks to navigate the evolving landscape. Dr. Sarah Hunter, the RBA's chief economist, warns that these supply shocks are becoming more frequent and severe, posing significant challenges to the Monetary Policy Board and the broader economy.
One of the most recent examples of these supply shocks is the missile strikes launched by the United States against Iran, which threaten to disrupt shipping traffic through the Strait of Hormuz. Dr. Hunter emphasizes that the RBA must now consider the potential long-term impacts of such shocks, particularly their effects on inflation expectations. If a shock is expected to be persistent and lead to higher inflation, the central bank may need to raise interest rates to mitigate the risks.
This is not the first time the RBA has grappled with the consequences of supply shocks. In 2023, RBA governor Michele Bullock warned of the potential impact of severe weather events on interest rate settings and financial system stability. This year, RBA officials have openly discussed the risks of de-globalization and fragmentation, and the need to adapt macroeconomic policy frameworks to a more shock-prone world.
Dr. Hunter highlights the RBA's efforts to enhance its understanding of the implications of increasing supply shocks. The bank has launched several initiatives to strengthen its ties with academia, think tanks, and the broader economic community, allowing for the testing of new ideas and the integration of cutting-edge knowledge. The 2026 Annual Conference will focus on the topic of trade-offs, bringing together world-leading academics and policymakers to discuss these complex issues.
Despite the challenges, Dr. Hunter acknowledges that the RBA's inflation-targeting framework remains effective. However, the increasing prevalence of adverse supply shocks could make it more difficult for central bankers to navigate the complexities of the global economy. The past 18 months have been particularly challenging, with events unfolding differently from the RBA's initial expectations, such as the 'Liberation Day' tariffs in April 2025 and the subsequent trade and tariff challenges.
In conclusion, the RBA is adapting to a rapidly changing environment, recognizing that the frequency and severity of supply shocks are likely to persist. By investing in new models and frameworks, the bank aims to better understand and manage these shocks, ensuring the stability of the Australian economy in the face of global uncertainty.
