Introduction
Supply-side policies aim to improve the productive capacity of an economy by enhancing the factors of production, shifting the long-run aggregate supply (LRAS) curve to the right. Governments often pursue them to raise the standard of living, since a larger productive capacity can support higher incomes, more employment and greater government revenue for social services. This essay considers two common supply-side policies and assesses how effectively they raise living standards.
Education and retraining
One of the most common supply-side policies is increasing subsidies on education and retraining. By investing in human capital, the government improves the skills and productivity of the workforce, whether through expanding university education, vocational training or subsidies that encourage firms to retrain workers.
When the labour force becomes more skilled, LRAS shifts rightwards from AS0 to AS1, raising potential output from Yf0 to Yf1. In an economy already operating at full employment, such as Singapore, real national income rises from Y0 to Y1, delivering higher economic growth.
The rise in real national income boosts disposable incomes, allowing citizens to afford more goods and services and improving material standard of living. A more educated workforce can earn higher wages and gain better access to housing, healthcare and education. Higher education also raises non-material standard of living through greater job satisfaction, more meaningful careers and improved mental wellbeing. These effects take time, however, as skills development requires long-term investment and there is a lag before workers can apply new skills. Gains may also be uneven across sectors.
Tax incentives and grants to encourage investment
Governments use tax incentives and grants to attract foreign direct investment (FDI) and encourage domestic firms to invest in capital goods. Lower corporate tax rates or investment grants raise both domestic and foreign investment, stimulating growth.
Increased investment raises aggregate demand, since investment is a component of AD, shifting AD rightwards from AD0 to AD1 and raising national income. This lifts disposable incomes and improves material standard of living. Investment in capital goods also raises productive capacity, shifting LRAS rightwards from AS0 to AS1 and raising potential output from Yf0 to Yf1, supporting a more sustainable improvement in living standards.
A real-world example is Singapore's provision of significant incentives to attract Las Vegas Sands to invest in the Marina Bay Sands integrated resort. This created jobs, enhanced the skills of local workers in hospitality and events, and raised wages, while new leisure amenities improved both material and non-material standards of living. The benefits of FDI carry risks, however. Foreign firms may be footloose and relocate or downsize in adverse conditions, leading to job losses. Dyson's decision in October 2024 to retrench workers in Singapore illustrates the vulnerability of relying on foreign firms, which can reduce the long-term gains to living standards.
Conclusion
Supply-side policies such as investing in education and offering tax incentives for investment can improve both material and non-material standards of living, by raising skills, productivity, investment, incomes and access to goods and services. Their effectiveness depends on sound implementation and on the time required for benefits to materialise, and FDI carries the risk that footloose firms provide unstable, short-lived gains. Supply-side policies are therefore a crucial tool for raising living standards, but they must be carefully managed to ensure sustainable and equitable growth.