The ontology, measurement, and features of temporary internal migration in selected countries of Asia.

Temporary internal migration is an important livelihood strategy but there have been inconsistencies in its conceptualisation and measurement which limit understanding of the phenomenon across diverse geographical contexts. This paper explores the ontological category of temporary internal migration and how it is defined and measured in eight Asian countries. We identify three broad approaches to measurement: <italic>Place of enumeration</italic>; <italic>Multilocality</italic> and <italic>Administrative measures</italic>. Using these data, we undertake comparisons of migration intensity, age profiles, and rural- to-urban flows across countries in our sample. Our findings indicate that temporary migration ranges between 0.3 to 2.9 per cent of the population—likely an underestimate of internal temporary mobility. Applying an average intensity of 1.5 per cent to all Asian countries yields an estimate of 71 million temporary internal migrants in any given year. Analysis of age profiles reveals that temporary internal migration peaks not only at young adult ages, but also at older ages in selected countries, pointing to the importance of consumption-related movements in some settings. The geographical patterns are also diverse with rural-to-urban flows matched by significant rural-to-rural and urban-to-rural flows. The paper concludes with recommendations for advancing both the conceptualisation and measurement of temporary internal migration. [ABSTRACT FROM AUTHOR]