Migration is a growing and dynamic phenomenon. The number of international migrants in the world increased by one-third in the 13 years to 2013, to the level of 232 million. Countries of origin have become more diversified over time, while new countries of destination and transit have emerged. In addition, migrants are today more skilled than ever and women represent a growing share of migrants, in particular skilled ones. Intra-regional flows are on the rise across the world, including within the OECD area and Europe. The challenge of how to reach out to diasporas is shared among all countries, irrespectively of their income and development levels.