Introduction
In assessing changes in the standard of living (SOL) in Singapore in 2017 and in comparing it with other countries, indicators such as GDP growth, inflation and unemployment provide useful insight but carry significant limitations. The standard of living covers both material wellbeing, measured by income and access to goods and services, and non-material aspects such as quality of life, environmental conditions and social wellbeing. Economic indicators offer a broad overview but often fail to capture income distribution, purchasing power and non-material factors. For international comparisons, differences in data accuracy, exchange rate fluctuations and cost of living further complicate assessment.
Shortcomings for comparing Singapore over time
One major limitation of using GDP per capita to assess changes within Singapore in 2017 is that it ignores income inequality. GDP per capita is an average that can mislead in a society with uneven income distribution. A rise in GDP per capita does not necessarily mean an improvement for the majority if income gains are concentrated among the wealthy, so median wages may give a more accurate picture of how the typical citizen is faring.
GDP per capita also fails to capture non-material aspects of the standard of living. It reflects material wellbeing but not work-life balance, environmental quality, healthcare accessibility or life satisfaction. A rise driven by longer working hours, for example, may not indicate a better quality of life if it comes at the expense of leisure and wellbeing.
Shortcomings for comparing Singapore with other countries
Comparisons across countries face additional limitations. One key issue is differences in purchasing power. The cost of goods and services varies across countries, so higher incomes do not necessarily mean greater purchasing power if living costs are also higher. Average salaries in Singapore are higher than in Malaysia, but so is the cost of living, so comparing GDP per capita without adjusting for purchasing power parity (PPP) can mislead.
Exchange rate fluctuations also distort comparisons. International comparisons usually require conversion into a common currency, often the US dollar, but exchange rates fluctuate for reasons unrelated to economic performance, such as speculation or geopolitical events. After Brexit, the British pound depreciated significantly against the US dollar, sharply reducing the UK's GDP per capita in US dollar terms, although this did not reflect an actual fall in UK residents' living standards.
Data accuracy presents a further challenge. GDP and related data may be imprecise, particularly in large economies with significant rural populations where informal employment and unregistered activity are common. In countries with substantial underground economies, many transactions go unrecorded, leading to underestimation of economic activity and living standards, while tax evasion and illicit transactions add to discrepancies and make direct comparisons difficult.
Conclusion
While GDP growth, inflation and unemployment provide useful insight into economic performance, they have notable shortcomings for assessing changes in Singapore's standard of living and for cross-country comparisons. Income inequality, purchasing power differences, exchange rate volatility and data accuracy must all be considered. Alternative measures such as median income, quality-of-life indices and purchasing power parity adjustments give a more holistic perspective on the wellbeing of a population.