Many factors affect the net benefits and costs of migration and thus impact the decision to migrate. Studies indicate that the key determinants of migration include the availability of migrant networks, differences in income across countries, and demographic factors, but many other factors also affect the migration decision. Constraints created by tighter migration policy represent the most significant hurdle to migration. Prior to making significant changes in migration policy, policymakers should make sure they sort out which factors are driving each migrant flow so they are better prepared to welcome their new migrants.
ELEVATOR PITCHThere are a myriad of economic and non-economic forces behind the decision to migrate. Migrants can be "pushed" out of their home countries due to deteriorating economic conditions or political unrest. Conversely, migrants are often "pulled" into destinations that offer high wages, good health care, strong educational systems, or linguistic proximity. In making their decision, individuals compare the net benefits of migration to the costs. By better understanding what forces affect specific migrant flows (e.g. demographic characteristics, migrant networks, and economic conditions), policymakers can set policy to target (or reduce) certain types of migrants.
KEY FINDINGS ConsMigration costs are central to the migration decision, they take many forms (e.g. transportation, job search, visa fees, smuggler fees), and often vary with distance. Strict migration policy acts as a constraint in the migration decision. Demographic factors such as age, education, marital status, and language impact a person's willingness to migrate. Worsening political and environmental conditions abroad and/or improving conditions at home can lead to less migration.
NICOLE B. SIMPSON | Demographic and economic determinants of migration
MOTIVATIONConsider the forces that would motivate people and their families to leave their home country and move to another to start a new life. Some of those forces are economic: a higher standard of living, the chance to find a better job, or a more comfortable safety net. However, other forces are at play as well, such as superior amenities (e.g. air quality), a democratic political system, and access to a better education system. Between 2010 and 2020, the growth in the migrant stock worldwide increased by 5.1 million each year [1]. Many more would like to migrate if given the opportunity. Understanding the key determinants of migration patterns is essential when considering the implications of immigration policy. Setting immigration policy without thinking through the various mechanisms that are driving migrant flows is misguided and could lead to unintended consequences.