Context: In June 2022, Deputy Prime Minister Lawrence Wong stated that inflation is just one of several challenges confronting Singapore, highlighting domestic and global structural changes such as an ageing population, rising geopolitical tensions and climate change, and the need to speed up reforms to enhance productivity.
Introduction
Structural changes such as an ageing population, rising geopolitical tensions and climate change represent long-term, often irreversible shifts in the foundations of an economy. These developments go beyond short-term fluctuations in aggregate demand and have significant implications for a country's long-run aggregate supply (LRAS), fiscal position and price stability. For Singapore, a small, open and resource-constrained economy, these challenges are particularly acute.
Ageing population
As the population ages and birth rates remain low, the proportion of working-age individuals relative to the total population is expected to decline. This reduces productive labour hours and the economy's potential output. From an aggregate supply perspective, the result is a leftward shift of the LRAS curve, reflecting a contraction in long-run productive capacity. Even if aggregate demand remains stable, the reduced capacity to produce leads to slower long-term growth and could contribute to structural unemployment if older workers exit the workforce faster than new ones enter.
An ageing population also increases pressure on public finances. Government spending on healthcare, eldercare and retirement-related transfers such as CPF payouts is expected to rise significantly, while the tax base may shrink as fewer people remain in the workforce. This mismatch between rising expenditure and falling revenue can worsen the budget position unless offset by productivity gains or tax reforms.
Geopolitical risks
Rising geopolitical tensions, such as the ongoing Russia-Ukraine conflict, US-China trade frictions and instability in key supply regions, can trigger supply-side shocks. Singapore is highly dependent on imported food, fuel and raw materials. Geopolitical risks disrupt global supply chains and reduce the availability of these inputs, raising the cost of production for local firms. Oil price volatility raises transport and electricity costs across sectors, while food import disruptions raise costs for consumers and food-related businesses. This shifts the Short-Run Aggregate Supply (SRAS) curve leftward, causing cost-push inflation as firms pass on higher costs.
While some shocks may be temporary, prolonged instability could lead to persistently higher prices, eroding purchasing power and raising inflation expectations, which may require contractionary responses that slow growth further. For a trade-reliant country, geopolitical fragmentation also poses risks to trade volumes and foreign direct investment.
Climate change
As extreme weather events such as heatwaves, droughts and flooding become more frequent, there are serious consequences for food security, infrastructure resilience and overall productivity. Climate change can cause agricultural production shocks in key supplier countries. As crop yields decline, global food prices rise. For Singapore, which imports over 90 per cent of its food, such disruptions translate into imported inflation and a higher general price level.
Domestically, Singapore is highly exposed to rising sea levels and erratic rainfall. Much of the country lies close to sea level, making it vulnerable to coastal flooding. Floods can damage infrastructure, disrupt business operations and reduce capital stock, lowering potential output and shifting the LRAS curve leftward if adaptation investments are not made in time. In the longer term, persistent climate disruption may raise business costs and undermine Singapore's competitiveness as a global hub unless decisive mitigation and adaptation policies are undertaken.
Conclusion
The structural changes identified, an ageing population, geopolitical instability and climate change, pose substantial risks to Singapore's long-term economic stability. Each can reduce productive capacity, raise prices and weaken public finances, either by shifting LRAS and SRAS leftward or by distorting resource allocation. As such, they threaten both economic growth and inflation control, and constrain the government's ability to meet future challenges. Addressing them will require deep structural reform, particularly in productivity enhancement, fiscal resilience and climate adaptation.