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At present there is no unified treatment, drawing together models to allow a consistent and reliable set of migration flows, across countries. This text seeks to do exactly that, potentially improving policies, planning and understanding about migration processes worldwide, via the presentation of migration estimation and modeling techniques. These modeling techniques are explored from both frequentist and Bayesian perspectives. The vital concepts such as missing data and collection methods (and their possible harmonization) are discussed in depth, and there are whole chapters dedicated to bot

In the early 2000s, asylum seekers went primarily to destinations their countries had historical relationships, including former colonial ties, common languages and ethnic networks. Since the mid‐2000s, there has been a shift towards asylum seekers arriving in destinations without such relationships. In this study, we apply spatial interaction models to understand the factors contributing to recent asylum migration from developing countries to developed countries from 2001 to 2015. We find that the push factors of political terror, civil rights violation and poverty do not result in increased asylum migration to developed countries. Instead, they act to reduce the number of asylum seekers. We also find that interactions between a range of push factors are important for understanding the movements and that immigration policies can have considerable effects on the destination choices of asylum seekers.

En Australie, le nombre d'immigrés et leur proportion dans l'ensemble de la population ont augmenté de façon notable entre 1981 et 2011. Alors qu'en début de période ils étaient majoritairement nés en Europe, leurs origines se sont diversifiées en faveur des autres régions du monde. La population immigrée a aussi vieilli, et elle se modifie sous l'effet non seulement des flux d'entrées mais aussi des flux de sorties. Certains immigrés retournent dans leur pays d'origine ou partent ailleurs. Depuis les années 1990, les immigrés temporaires (étudiants, détenteurs de visa d'affaires, vacanciers-travailleurs) représentent une part croissante de l'ensemble des immigrés.

Descriptive studies of international migration typically rely on measures of migrant stocks and migration rates to assess migration patterns. In this paper we propose a third alternative. Using harmonized data on age-specific migration flows between all countries in the European Union (EU) and European Free Trade Association (EFTA) each year from 2002 to 2007, we estimate the expected duration of residence of international migration, defined as the average number of years lived by migrants in the receiving country given period migration and mortality schedules. Our results provide a window into the temporal dynamics of international migration in Europe, increasingly relevant given recent expansions of the EU.

Descriptive studies of international migration typically rely on measures of migrant stocks and migration rates to assess migration patterns. In this paper we propose a third alternative. Using harmonized data on age-specific migration flows between all countries in the European Union (EU) and European Free Trade Association (EFTA) each year from 2002 to 2007, we estimate the expected duration of residence of international migration, defined as the average number of years lived by migrants in the receiving country given period migration and mortality schedules. Our results provide a window into the temporal dynamics of international migration in Europe, increasingly relevant given recent expansions of the EU.