Definitions of net migration, immigration and emigration
Economic Development – Population
Objective: Definitions of net migration, immigration and emigration
Migration is the movement of people from one place to another. In economics we break it down into three key terms that help us understand how populations change.
Net Migration
Net migration = (people who move into a country) – (people who move out of a country). It tells us whether a country is gaining or losing people overall.
🧩 Analogy: Think of a classroom. If 10 new students join and 4 leave, the net migration is +6 – the class has grown by 6 students.
📈 Example: In 2023, Country X had 200,000 immigrants and 150,000 emigrants. Net migration = 200,000 – 150,000 = +50,000 people.
Immigration
Immigration is the arrival of people into a country. It is the inflow part of migration.
🌍 Analogy: Imagine a new guest arriving at a party – that’s immigration.
📊 Example: In 2023, 200,000 people moved to Country X from other countries.
Emigration
Emigration is the departure of people from a country. It is the outflow part of migration.
🚶♂️ Analogy: A guest leaving the party early – that’s emigration.
📉 Example: In 2023, 150,000 people left Country X for other countries.
| Term | Definition | Example |
|---|---|---|
| Net migration | Inflows – outflows | +50,000 in Country X |
| Immigration | People moving into a country | 200,000 arrivals |
| Emigration | People leaving a country | 150,000 departures |
Exam Tips
- Remember: Immigration = inflow, Emigration = outflow.
- Net migration is the difference between the two.
- Use the formula: $Net\ migration = Immigration - Emigration$.
- When given numbers, calculate the net figure and state whether it is positive (gain) or negative (loss).
- Use the word net to show the overall effect.
Revision
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