Positive and negative impacts of migrant workers on labour supply

Migrant workers can significantly influence a country's labour supply, bringing both advantages and challenges to the economy.

Positive impacts of migrant workers

• Boosting labour supply and economic growth - Migrant workers expand the available workforce, particularly if they are young, skilled, and adaptable. They contribute by earning wages and spending in the local economy, which raises aggregate demand and supports overall expansion.
• Filling skills shortages - Migrants often address gaps in specific sectors, such as technology, where roles like programmers or analysts may be hard to fill domestically.
• Supporting ageing populations - Net migration of people in their working years helps balance demographics in countries with older populations, ensuring there are enough workers to support economic activity and public services.

Negative impacts of migrant workers

• Pressure on wages - An influx of migrants can increase competition for jobs, potentially lowering wage rates, especially in low-skilled areas like building work. This may affect local workers' earnings and living standards.

Economic effects of migration on the labour market

Migration alters the dynamics of the labour market by changing the supply of workers, which can impact wage levels and employment.

How migration shifts labour supply

In a labour market, such as manufacturing:

• Initially, the wage rate is at an equilibrium level (e.g., W₀), where supply meets demand.
• When migrants join the workforce, the labour supply curve shifts to the right (e.g., from S to S₁).
• This creates an excess of workers at the original wage (W₀), leading to downward pressure on pay.
• Wages continue to fall until a new equilibrium is reached (e.g., at W₁), where supply and demand balance again.
• Overall, the increased labour supply results in lower wages but potentially higher employment levels in the sector.

This shift demonstrates how migration can make labour cheaper for employers but may disadvantage existing low-skilled workers through reduced pay.

Government policies to encourage or discourage immigration

Governments often design policies based on migration's economic impacts, aiming to attract beneficial workers while controlling overall numbers.

Policies to encourage immigration

• Targeted visa schemes - Some countries create categories for skilled professionals to gain residency if they meet criteria like qualifications or job offers. For instance, systems similar to New Zealand's allow experts in high-demand fields to settle permanently.
• Promoting free movement - Agreements between nations enable easier worker mobility, such as during economic slumps when people move from harder-hit areas to places with better jobs and pay, like from southern to northern Europe.

Policies to discourage immigration

• Focus on skilled over low-skilled migrants - Governments may prioritise those who add high value to the economy, viewing excessive low-skilled migration as unmanageable.
• Quota and qualification systems - Limits on work permits can restrict numbers, with requirements like proven job offers above a salary minimum. For example, certain Nordic nations have used caps and later shifted to skilled-worker mandates.

Limitations on government policies to reduce immigration

While governments may seek to curb immigration, various factors can undermine these efforts, making control challenging in a global context.

Factors limiting policy effectiveness

• Freedom of movement in economic unions - Citizens of member states can often move freely for work, bypassing national restrictions and allowing continued inflows.
• Global events increasing migration - Conflicts or crises can lead to surges in refugees and asylum seekers, which governments must accommodate under international obligations, overriding domestic limits.