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Net Migration Calculator

Difference between immigration and emigration.

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Net Migration

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Overview

Net migration represents the difference between the number of people entering a specific territory and the number of people leaving it over a defined period. It serves as a fundamental component of the demographic accounting equation, helping researchers distinguish between population changes caused by movement versus natural births and deaths.

Symbols

Variables

I = Immigrants, E = Emigrants, N = Net Migration

Immigrants
Emigrants
Net Migration

Apply it well

When To Use

When to use: This formula is applied when analyzing urban growth, national demographic shifts, or regional labor trends over a specific time interval, such as a fiscal year. It assumes that the data for both inward and outward movement is collected from the same administrative boundaries and timeframe.

Why it matters: Calculating net migration is essential for governments to allocate resources for infrastructure, schools, and healthcare based on population flow. A positive result indicates a 'brain gain' or economic pull, while a negative result may highlight economic decline or social instability requiring policy intervention.

Avoid these traps

Common Mistakes

  • Subtracting immigration from emigration.

One free problem

Practice Problem

An island nation recorded 25,400 new arrivals (immigrants) and 18,900 departures (emigrants) during the 2023 calendar year. What was the net migration for the island?

Immigrants25400 k
Emigrants18900 k

Solve for: net

Hint: Subtract the number of people leaving from the number of people arriving.

The full worked solution stays in the interactive walkthrough.

References

Sources

  1. Wikipedia: Net migration
  2. Britannica: Human migration
  3. United Nations, Department of Economic and Social Affairs, Population Division (2017). International Migration Report 2017.
  4. Britannica, The Editors of Encyclopaedia. 'Migration'. Encyclopedia Britannica, 22 Sep. 2023.
  5. Wikipedia, 'Human migration'
  6. Wikipedia, 'Net migration'
  7. Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell Publishing.
  8. United Nations, Department of Economic and Social Affairs, Population Division. (2017). International Migration Report 2017: Highlights.