A/CONF.171/13 English Page 72 encouraged to facilitate return migration by adopting flexible policies, such as the transferability of pensions and other work benefits. 10.6. Governments of countries affected by international migration are invited to cooperate, with a view to integrating the issue into their political and economic agendas and engaging in technical cooperation to aid developing countries and countries with economies in transition in addressing the impact of international migration. Governments are urged to exchange information regarding their international migration policies and the regulations governing the admission and stay of migrants in their territories. States that have not already done so are invited to consider ratifying the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families. 10.7. Governments are encouraged to consider requests for migration from countries whose existence, according to available scientific evidence, is imminently threatened by global warming and climate change. 10.8. In cooperation with international and non-governmental organizations and research institutions, Governments should support the gathering of data on flows and stocks of international migrants and on factors causing migration, as well as the monitoring of international migration. The identification of strategies to ensure that migration contributes to development and international relations should also be supported. The role of international organizations with mandates in the area of migration should be strengthened so that they can deliver adequate technical support to developing countries, advise in the management of international migration flows and promote intergovernmental cooperation through, inter alia, bilateral and multilateral negotiations, as appropriate. B. Documented migrants Basis for action 10.9. Documented migrants are those who satisfy all the legal requirements to enter, stay and, if applicable, hold employment in the country of destination. In some countries, many documented migrants have, over time, acquired the right to long-term residence. In such cases, the integration of documented migrants into the host society is generally desirable, and for that purpose it is important to extend to them the same social, economic and legal rights as those enjoyed by citizens, in accordance with national legislation. The family reunification of documented migrants is an important factor in international migration. It is also important to protect documented migrants and their families from racism, ethnocentrism and xenophobia, and to respect their physical integrity, dignity, religious beliefs and cultural values. Documented migration is generally beneficial to the host country, since migrants are in general concentrated in the most productive ages and have skills needed by the receiving country, and their admission is congruent with the policies of the Government. The remittances of documented migrants to their countries of origin often constitute a very important source of foreign exchange and are instrumental in improving the well-being of relatives left behind. /...