Western Union commissioned the Economist Intelligence Unit to compile a migration index that ranks 61 countries by how attractive and accessible they are for migrants (the Global Migration Barometer), with a separate assessment of their need for migrants. The Economist Intelligence Unit developed the methodology behind the index, collected the data and scored the countries, with input from Western Union and an independent panel of migration experts. The index has been produced for 61 developed and emerging markets using a standard analytical framework. The model used to generate the index employs indicators that reflect the standard of living and economic development of a country, legislative policy and attitudes towards migration, and demographics and social welfare commitments. Many of the 32 indicators used to generate the index are based on quantitative data and have been drawn from national and international statistical sources. The others are qualitative in nature and have been produced by the Economist Intelligence Unit. Each of the indicators has been adjusted and weighted to produce a score of 0 to 100, where 100 represents the highest attractiveness, accessibility or need for migrants.