Migration policy

Ever since the major inflow of refugees (the “refugee crisis”) in 2015 and 2016, there has been heated debate about the appropriate distribution of refugees in the EU. Current policies revolve around mandatory quotas, which disregard the preferences of EU members and refugees alike. This problem can be addressed with two market mechanisms. First, tradable quotas minimize the cost of asylum provision for host countries. Second, a matching system gives refugees more discretion over where they are sheltered. While this proposal is theoretically appealing, it has yet to be tested in practice.

The relationship between climatic shocks, natural disasters, and migration has received increasing attention in recent years and is quite controversial. One view suggests that climate change and its associated natural disasters increase migration. An alternative view suggests that climate change may only have marginal effects on migration. Knowing whether climate change and natural disasters lead to more migration is crucial to better understand the different channels of transmission between climatic shocks and migration and to formulate evidence-based policy recommendations for the efficient management of the consequences of disasters.

There 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.

Border enforcement of immigration laws raises the costs of illegal immigration, while interior enforcement also lowers its benefits. Used together, border and interior enforcement therefore reduce the net benefits of illegal immigration and should lower the probability that an individual will decide to illegally migrate. While empirical studies find that border and interior enforcement serve as deterrents to illegal immigration, immigration enforcement is costly and carries unintended consequences, such as a decrease in circular migration, an increase in smuggling, and higher prevalence of off-the-books employment and use of fraudulent and falsified documents.

Since the 1990s, South Korea’s population has been aging and its fertility rate has fallen. At the same time, the number of Koreans living abroad has risen considerably. These trends threaten to diminish South Korea’s international and economic stature. To mitigate the negative effects of these new challenges, South Korea has begun to engage the seven million Koreans living abroad, transforming the diaspora into a positive force for long-term development.

The migration crisis of 2015–2016 threw the European asylum system into disarray. The arrival of more than two million unauthorized migrants stretched the system to its breaking point and created a public opinion backlash. The existing system is one in which migrants risk life and limb to gain (often unauthorized) entry to the EU in order to lodge claims for asylum, more than half of which are rejected. Reforms introduced during the crisis only partially address the system's glaring weaknesses. In particular, they shift the balance only slightly away from a regime of spontaneous asylum-seeking to one of refugee resettlement.

Immigrants who start with low earnings, such as family-based immigrants, experience higher earnings growth than immigrants who are recruited for specific jobs (employment-based immigrants). This occurs because family-based immigrants with lower initial earnings invest in human capital at higher rates than natives or employment-based immigrants. Therefore, immigrants who start at low initial earnings invest in new human capital that allows them to respond to the ever-changing needs of the host country’s economy.