This model describes how natural increase and total population change within a country as it develops
In this stage of the DTM, TFR and CBR tend to decline as women gain access to more rights and economic opportunities
What is Stage 3?
Rising median ages in MDCs is largely due to an increase in this demographic statistic as a result of increased access to medical care
What is life expectancy?
Economic opportunities, political stability, and a temperate climate within a region are all examples of these factors impacting migration
What are pull factors?

As Haitian immigrants have migrated to Miami, they send a large amount of remittances home that sustain fellow friends and family members to migrate as well. The result of this type of migration has transformed the cultural landscape as shown above. What type of migration is this?
What is Chain Migration?
This model describes how the way that people die changes throughout development, starting with famine and infectious diseases, shifting to degenerative diseases, and ending with reemerging infectious diseases
What is the epidemiological transition Model?
This woman helped found a major opposition theory to Thomas Malthus which suggested population pressure drives innovation
Who is Ester Boserup?
One reason birth rates continue to drop in MDCs and populations continue to age is because most people live in these areas where the cost of living is generally higher
What are urban areas/cities?
According to Lee, while the friction of distance always limits movement, this is especially true of migrations do to these which stand between a migrant and their final destination
What are intervening obstacles?
This type of internal migration in Stage 2 countries has contributed to mass overcrowding and high physiological density in cities, contributing to high rates of emigration
What is Rural-to-Urban Migration?
The DTM is accompanied by a similar model made by this man which describes how migration changes throughout development

Though outdated in many MDCs, Ravenstein's Laws predict that women are more likely to participate in this type of migration
What is Internal Migration?
In stage 3, 4, and 5 countries, most people live so long that these become the most common cause of death
What is are degenerative diseases?
What is Syria?
Many top universities today are led by academics who originated in LDCs. This demonstrates this social impact of transnational migrations on MDCs.
This model describes the influences of push and pull factors on voluntary migration
What is Lee's Model of Migration?
This phenomenon explains how CBR tends to decline as women gain access to education and choose to delay marriage and childbearing
What is "more books, less babies"?
Stage 5 countries with greying populations tend to place large strains on their working population due to this statistic that is considerable high.
What is the Dependancy Ratio?
Migration Policies such as these take advantage of step migration to move asylum from countries that are overcrowded to other countries that have not yet reached their quota, then to a final location where they can stay permanently or semipermanently
What are resettlement programs?
What are the suburbs?
Ravenstein's Laws of Migration outline several key migration patterns, including this concept which argues some individuals are more likely to migrate than others
What is Migration Selectivity?
This is the only population statistic for which the total number of women is considered
What is Total Fertility Rate?
Stage 5 countries experience extreme economic strain due to a higher percentage of government funds dedicated to these
What are pensions?
According to Ravenstein, these individuals are most likely to migrate
Who are young-adult single men?
Internal migration in the United States is particularly important because it shifts the balance of power in this political institution
What is the House of Representatives?