title: Beware the passenger card]  Australian and New Zealand data on population movement between the two countries.
abstract: "This article reports on idiosyncrasies of two official national migration databases, most of which became apparent when trying to account for marked differences in their estimates of both migratory and more short-term population movement between the two countries, and for variation over time in the pattern of differences.  It is shown that the use of apparently similar broad classification principles, by different countries and through time within a country, can create impressions of comparability and continuity that may be quite misleading."  Data are for Australia and New Zealand.
authors.forename: G A
authors.initials: GA
authors.lastname: Carmichael
mesh_terms: D001315:Australia; D003625:Data Collection; D003710:Demography; D019049:Developed Countries; D001330:Electronic Data Processing; D004641:Emigration and Immigration; D005069:Evaluation Studies as Topic; D009520:New Zealand; D010139:Pacific Islands; D011153:Population; D011157:Population Dynamics; D012106:Research; D012107:Research Design; D013223:Statistics as Topic
keywords: Australia; Comparative Studies; Data Analysis; Data Collection; Data Files; Data Quality; Data Sources; Demographic Factors; Developed Countries; Error Sources; Estimation Technics; Evaluation; International Migration; Measurement; Migration; New Zealand; Oceania; Population; Population Dynamics; Research Methodology; Studies