Net migration

(noun)

The difference of immigrants and emigrants of an area in a period of time, divided (usually) per 1,000 inhabitants (considered on midterm population). A positive value represents more people entering the country than leaving it, while a negative value mean more people leaving than entering it.

Related Terms

Examples of Net migration in the following topics:

  • Three Demographic Variables

    • The basics of demographic population growth depend on the rate of natural increase (births versus deaths) and net migration.
    • The United States illustrates how the rate of natural increase and net migration combine to create population change—the fertility rate in the U.S. is at almost exactly replacement level, but migration into the country is high enough to lead to population growth.
    • Human population growth depends on the rate of natural increase, or the fertility rate minus the mortality rate, and net migration.
    • Net migration is the mathematical difference between those migrating into a country and those migrating out of a country.
    • However, when dealing with ethnic groups, "net migration" might have to be subdivided into physical migration and ethnic re-identification (assimilation).

  • Migration

    • Migration is the movement by people from one place to another.
    • Urbanization refers to migration from rural to urban areas.
    • Yet another kind of migration, forced migration refers to the coerced movement of a person or persons away from their home or home region.
    • Positive migration rates are indicated in blue; negative migration rates in orange; stable in green; and no data in gray.
    • Discuss the types of migration in society and the various theories that explain migration

  • Introduction

    • It encompasses the study of the size, structure and distribution of populations, and how populations change over time due to births, deaths, migration, and aging.

  • A few hints on data handling with NetDraw

    • There are several ways to get data into NetDraw.Probably the simplest is to import data from UCINET or Pajek.The File>Open command lets you read a UCINET text (DL) file (discussed elsewhere), and existing UCINET dataset, or a Pajek dataset.This menu also is used to access data that have been stored in the native data format of the NetDraw program (.VNA format).Once the data has been imported with the Open command, the node and line attribute editors of NetDraw can be used to create a diagram that can be saved with colors, shapes, locations, etc.
    • The third method is to use an external editor to create a NetDraw dataset (a .vna file) directly.This file is a plain ascii text file (if you use a word processor, be sure to save as ascii text).The contents of the file is pretty simple, and is discussed in the brief tutorial to NetDraw.Here is part of the file for the Knoke data, after we have created some of the diagrams we've seen.
    • The *Tie properties section is probably best created by using NetDraw and saving the resulting file.Each tie is identified by origin and destination, and its color and size are set.Here, certain ties are not to be visible in the drawing (the "active" property is set to "FALSE").
    • When you are working with NetDraw, it is a good idea to save a copy of your work in the format (.vna, above) that is native to the program (File>Save Data As>Vna).This format keeps all of the information about your diagram (what's visible and not, node and line attributes, locations) so that you can re-open the diagram looking exactly as you left it.
    • You may also want to save datasets created with NetDraw to other program's formats.You won't be able to save all of the information about node and line properties and locations, but you can save the basic network (what are the nodes, which is connected to which) and node attributes.

  • Data and Methods

    • Additionally, demographers are interested in migration trends or the movement of people from one location to another.
    • net reproduction rate: the number of daughters who would be born to a woman according to current age-specific fertility and mortality rates

  • Wealth

    • Wealth is commonly measured in terms of net worth, which is the sum of all assets, including home equity, minus all liabilities.
    • Wealth in the United States is commonly measured in terms of net worth, which is the sum of all assets, including home equity, minus all liabilities.
    • The wealth—more specifically, the median net worth—of households in the United States varies with relation to race, education, geographic location, and gender.
    • This graph shows changes in the average net worth of families in each decile of the U.S. income hierarchy.
    • In recent years, the average net worth of high-income families has grown significantly more than that of middle and lower-income families.

  • Migration

  • Race and Genetics

    • Ongoing genetic research has investigated how ancestral human populations migrated in the ancestral geographic environment into different geographic areas.
    • Such analysis can pinpoint the migrational history of a person's ancestors with a high degree of accuracy.

  • Node attributes

    • In Figure 4.1, NetDraw has been used to render a directed graph of the data.
    • NetDraw produces a basic graph that you can then edit.
    • NetDraw>File>Open>UCInet dataset>Attribute data can then be used to open the attributes, along with the network, in NetDraw.
    • This figure was created by using the Analysis>K-core tool that is built into NetDraw.
    • In example 4.3, NetDraw has done this automatically for an amount that was computed by its Analysis>K-cores tool.

  • Population Transfer

    • The migration of large numbers of Hindus and Muslims between India and Pakistan after Partition occurred in 1947 is a significant historical example of a population exchange.
    • Population transfer differs from individually motivated migration in more than just a technical sense, though at times of war the act of fleeing from danger or famine often blurs the differences.