Introduction
The COVID-19 pandemic triggered one of the most severe economic contractions in modern history. For an open and highly globalised economy like Singapore the impact was particularly stark. With widespread travel restrictions, supply chain disruptions and falling consumer confidence, both aggregate demand and aggregate supply were hit concurrently, leading to a deep, broad-based recession. Discretionary fiscal policy, where the government deliberately adjusts spending or taxation, played a crucial role in cushioning the downturn and supporting recovery.
Fall in aggregate demand
The most immediate effect was a sharp fall in aggregate demand. With movement restrictions and social distancing, domestic consumption declined significantly as households cut spending on non-essential items, and services such as dining out, entertainment and retail contracted severely.
Simultaneously, exports were hit. With borders closed and air travel near standstill, Singapore's large tourism and hospitality sectors collapsed, while weaker global demand reduced manufactured exports and trade-related services. Imports also fell, but the fall in exports was relatively larger. The fall in consumption and net exports shifted the AD curve leftward, reducing real national income and lowering economic growth. Facing lower sales and profitability, firms cut hiring, raising cyclical unemployment.
Fall in aggregate supply
COVID-19 also disrupted aggregate supply. Short-run aggregate supply was affected by global logistical disruptions: container shipping costs surged and delivery times lengthened due to port closures and labour shortages, raising the cost of production for firms reliant on imported inputs and shifting SRAS leftward. Long-run aggregate supply also took a hit as many small and medium-sized enterprises shut down after sustained losses, and mandatory work-from-home arrangements reduced productivity where on-site collaboration was crucial, reducing the economy's productive capacity and shifting LRAS leftward. As both AD and AS fell, the economy faced a deep recession with rising unemployment and falling output.
How discretionary fiscal policy supports recovery
In response, the government implemented discretionary fiscal policy on an unprecedented scale, with deliberate and temporary changes to spending aimed at stabilising the economy. Multiple support packages totalling nearly S$100 billion aimed to stabilise income, protect jobs and support businesses.
The Jobs Support Scheme paid a significant portion of local employees' wages to help firms retain workers; by lowering costs of production it reduced the incentive to retrench, dampening the rise in cyclical unemployment. Increased direct hiring created public sector roles such as Safe Distancing Ambassadors, healthcare support roles and digital traineeships, providing incomes to workers affected by layoffs. Infrastructure investment brought forward transport and construction projects, creating jobs and generating positive multiplier effects throughout the economy.
The increase in government spending shifted the AD curve rightward, leading to a multiplied increase in real national income. As output rose, firms gradually resumed hiring, reducing cyclical unemployment. The combined effect was to soften the blow of the recession and lay the groundwork for recovery.
Conclusion
The pandemic dealt a significant blow to both demand and supply, causing GDP to contract by 5.4% in 2020 and pushing unemployment above 3% from a pre-pandemic low of 2.3%. Discretionary fiscal policy played a vital role in mitigating the impact. Through targeted government spending on wage subsidies, job creation and infrastructure, the government raised aggregate demand and supported employment during the downturn.