Dec 5th

Transportation improvements that have promoted globalization, such as motor vehicles and airplanes, have diminished the importance of environmental features as intervening obstacles. Most countries have adopted selective immigration policies that admit some types of immigrants but not others. Four types of immigration policies: Maintain the current level of immigration, increase the level, reduce the level, no policy. Similarly, emigration policies are identified by the same four classes. 21 countries seek more immigrants, 32 want fewer immigrants.