Australia has one of the highest rates of immigration relative to population in the developed world, and the economic debate around immigration has intensified as net overseas migration has hit record levels. Supporters argue it is essential for economic growth and filling labour shortages; critics argue it suppresses wages and drives up housing costs. Here is what the evidence actually shows.
The Wages Effect
The empirical evidence on immigration and wages is more nuanced than either side of the debate acknowledges. A large influx of workers with similar skills to existing workers can put downward pressure on wages in those specific occupations. But immigration also increases the size of the economy, creating demand for goods and services that generates jobs — partially or fully offsetting the supply-side effect on wages. The consensus from labour economics research is that the overall wage effect of immigration on existing workers is small and can be positive or negative depending on the composition of migrants and existing labour market conditions.
The Housing Effect
The housing impact of high immigration in a supply-constrained market is clearer. When 500,000 net arrivals need places to live and housing supply cannot respond quickly, prices and rents rise. This is not a controversial finding — it is basic economics. The appropriate policy response, however, is to increase housing supply rather than cut migration, because immigration also brings skills, entrepreneurship, and fiscal contributions that are lost if migration is reduced.
The Fiscal Impact
The fiscal impact of immigration depends heavily on the age and skill composition of migrants. Young, skilled migrants who work, pay taxes, and use fewer public services than the native-born population make a positive net fiscal contribution. Humanitarian migrants face higher initial costs but converge toward positive fiscal contributions over time. Australia's skilled migration system is designed to maximise the probability of a positive fiscal outcome — with largely successful results according to Productivity Commission analysis.
