Education usually shows a relationship with self-rated health such that those with highest education have the best health and those with lowest education have the worst health. We examine these educational gradients among Asian immigrants and whether they differ by country of origin, duration in the United States, and generational status. Migration theories suggest that recent immigrants from p...

We consider a mathematical model for the group size determination by the intra-reactions, self-growth, ostracism and fission within a group, and by the inter-reactions, immigration and fusion between two groups. In some group reactions, a conflict between two groups occurs about the reaction to change the group size. We construct a mathematical model to consider such conflict, taking into accou...

Pest animal populations, such as rodents, often irrupt in response to pulsed resources. However, few studies have considered how understanding the propagation of irruptions across landscapes could lead more efficient pest suppression. Resource pulses might create temporary source–sink dynamics heterogeneous environments, whereby reservoirs animals living high-quality habitat increase and spill ...

Citizenship tests are designed to ensure that new citizens have the knowledge required for successful 'integration'. This article explores what those who have taken the test thought about its content. It argues that new citizens had high levels of awareness of debates about immigration and anti-immigration sentiment. Considering new citizens' views of the test, the article shows how many of the...

Migration is an important event in the life history of many animals, but there is considerable variation within populations in the timing and final destination. Such differential migration at the population level can be strongly determined by individuals showing different consistencies in migratory traits. By tagging individual cyprinid fish with uniquely coded electronic tags, and recording th...

How does democratisation affect the politics of migration? This paper analyses Tunisian immigration and emigration in decade before after 2011 revolution, drawing on 57 interviews with high-level civil servants, as well representatives society international organisations. It shows that policy processes expansion citizens’ political freedoms did not result pro-migrant rights reforms, but instead...

This paper presents the population pyramid dynamics model (PPDM) to study evolution of a determined country or society, deducing as crucial objective its exact analytical solution. The PPDM is first-order linear partial differential equation whose unknown variable density (population per age unit) depending on time and age, jointly an initial condition in boundary given by births zero age. In a...

Comparative research on international migration has increasingly focused on immigrant integration rather than the process of emigration. By investigating the different streams of Chinese migration to the United States and Europe, as well as the different stages of Chinese migration to the U.S., this study examines the way in which both receiving and sending contexts combine to shape the process...

Emigration leads to finite changes in structure of production and sectors vanish because they cannot pay higher wages. Does emigration of one type of labour hurt the other non-emigrating type in this set up? We demonstrate various scenarios when real income of the emigrating and the non-emigrating type do not move together and in the process generalize some of the existing results in the litera...