Immigration Emigration Models
- Tools for analyzing how and why people move between areas, focusing on flows in and out.
- Compare areas by attributes such as population size, distance, and relative attractiveness.
- Support policymakers and researchers in assessing demographic and economic impacts.
Definition
Section titled “Definition”Immigration-emigration models are used to analyze the flow of people in and out of a particular area or country and to help policymakers and researchers understand the factors that drive immigration and emigration as well as the potential impacts on the population and economy of the area in question.
Explanation
Section titled “Explanation”These models examine drivers and patterns of population movement between areas. They evaluate characteristics of origin and destination areas—such as relative size, distance, and economic or quality-of-life differences—to predict or explain migration flows. By comparing attributes of two areas, the models estimate the likely direction and magnitude of movements and the consequences for population and economic conditions.
Examples
Section titled “Examples”Gravity model
Section titled “Gravity model”The gravity model predicts the flow of people between two areas based on their relative sizes and the distance between them. It assumes that larger and closer areas have higher flows. For example, if one city has a population of 10 million people and is located just a few miles away from another city with a population of 5 million people, the gravity model would predict that there would be a higher flow of people between these two cities compared to a situation where one city has a population of 5 million people and is located thousands of miles away from another city with a population of 10 million people.
Pull-push model
Section titled “Pull-push model”The pull-push model predicts flows based on the relative attractiveness of each area, assuming people move toward areas offering more opportunities or advantages. For example, if one city has a strong economy and a thriving job market, while another city has a struggling economy and high levels of unemployment, the pull-push model would predict that more people would move from the second city to the first city in search of better opportunities.
Use cases
Section titled “Use cases”- Understanding and predicting migration flows between regions or countries.
- Identifying factors that drive immigration and emigration.
- Assessing potential impacts of migration on population size and economic conditions.
Related terms
Section titled “Related terms”- Gravity model
- Pull-push model