Movers & Places
Flows & Streams
Forced Migration
Migration Strategies
Who Moves
Obstacles & Causes
Theories of Migration
U.S. Immigration & Refugees
Data & Case Studies
Big Concepts
100

Migrants move away from these places, which are their current places of residence.

Origins

100

All migrants moving from one origin to one destination in a time period form this.

Migration stream

100

People outside their country with a well-founded fear of persecution.

Refugees

100

People from the northern U.S. or Canada who spend winters in warmer states or Mexico.

Snowbirds

100

This German-English geographer proposed the eleven “laws of migration.”

Ernst Georg Ravenstein

100

Aspects of a place that compel people to leave

Push factors

100

Part of a migrant’s earnings sent back home to family.

Remittances

100

This official document shows a person is a lawful permanent resident.

A green card.

100

The UN estimated this many people lived outside their country of origin in 2024.

304 million

100

The broad concept covering all human geographic movement, from commuting to moving abroad.

Spatial Mobility

200

Migrants move from their origins to these places.

Destinations

200

The movement of migrants in the opposite direction of a main stream.

A counter stream
200

People forced from their homes who remain within their own country’s borders.

internally displaced persons (IDPs)

200

Moving from a nearby town to a larger city to the final destination in incremental steps

Stepwise migration

200

The loss of young, educated, skilled people from a place through migration.

Brain drain

200

Attributes of a place that draw people to it.

Pull factors

200

This theory says migration moves labor from low-wage to high-wage areas until wages equalize

The macroadjustment theory

200

Congress passed this act in 1980 to adopt the UN definition of a refugee.

Refugee Act of 1980

200

This Chinese household registration system worked like an internal passport.

The Hukou system
200

Castles and Miller call the period since the late twentieth century this.

“Age of Migration”

300

Moves into a place make up this.

in-migration

300

In-migrants minus out-migrants is called

net migration

300

A small town’s economy collapses and people move though they would have preferred to stay, so this type of move is called this.

Reluctant migration

300

One group of migrants is followed by others from the same origin, creating ethnic neighborhoods like Chinatowns.

Chain migration

300

The opposite of brain drain, where a place gains migrants’ skills and experience.

Brain gain

300

This sociologist developed the push-pull theory in 1966.

Everett S. Lee

300

This model treats migration as an investment based on anticipated future returns.

Human capital model

300

Eisenhower’s name for the 1956 effort to admit Hungarian refugees.

Operation Safe Haven

300

Moves within the same metropolitan area, usually for housing reasons.

Intraurban mobility

300

This type of mobility is movement up or down a social hierarchy, as opposed to geographic movement.

Social mobility

400

People who move out of a particular place are called this

out-migrants

400

Migration flows tend to concentrate in certain directions instead of being random, a tendency known as this.

Directional bias

400

Countries that ratified the Refugee Convention should not send refugees back against their will, according to this principle

Non-refoulement

400

Estimates suggest this type of migration may account for over sixty percent of migration stream events

Repeat migration

400

The relationship between age and migration intensity, which peaks around age 25.

Migration age profile (schedule)

400

Distance and legal restrictions are examples of Lee’s term for barriers that migrants must overcome.

Intervening obstacles

400

The new economics of labor migration (NELM) sees migration as this, meant to diversify income and reduce risk.

Household strategy

400

This New Jersey site was the central processing point for Hungarian refugees.

Camp Kilmer

400

The U.S. internal migration rate hit this historic low in 2021.

8.4%

400

These two U.S. surveys ask where people lived one or five years ago

ACS and the CPS

500

People who leave a country are given this name.

Emigrants

500

In 2023, about 71,138 New Yorkers moved to this state, and only 24,749 moved the other way.

Florida

500

Filing Form I-589 with USCIS makes a person this

An asylum seeker

500

Migrants build up savings, skills, and social networks in a neighboring country before their final destination. This is known as this.

Migrant capital

500

This is the only one of Ravenstein’s laws that no longer holds true today

“urban dwellers are less migratory than rural people” (the fifth law)

500

The unwillingness to leave a familiar place because of attachment and sense of belonging.

Cumulative inertia

500

Piore’s dual labor market theory says immigrants fill jobs in this sector.

Secondary sector

500

The 1965 Immigration and Nationality Act allowed this percentage of immigrants to enter as refugees

6%

500

The Sudan war pits the Sudanese Armed Forces against this paramilitary group.

The Rapid Support Forces (RSF)

500

In Zelinsky’s mobility transition, this stage is the most mobile.

Early transitional societies