Indirect measurement of migration

Indirect measurement of migration (INDIRECT measurement of migration)

Translation
Section	English 805	Arabic 805	Czech 805	German 805	Spanish 805	Finnish 805	French 805	Italien 805	[[pl-I:80#805\|Template:Lang name -pl 805]]	Portuguese 805	Russian 805
805-1	indirect measurement of migration	قياس الهجرة غير المباشر	nepřímé zjišťování migrace	mittelbare Erfassung des Wanderungssaldos	cómputo indirecto de la migración	muuttoliikkeen välillinen mittaaminen	détermination indirecte de la migration nette	determinazione indiretta della migrazione netta	pośrednie mierzenie migracji	LEVANTAMENTO indireto da migração	Косвенный метод измерения чистой миграции
805-2	residual	طريقة البواقي	migrační saldo	Restbetrag	residuo —saldo	jäännöksenä	résidu	residuo	metoda reszt (mierzenie migracji)	RESÍDUO	Числа остаточные
805-3	vital statistics technique	طريقة الإحصاء الحيوي	metoda přirozeného přírůstku	Methode der natürlichen Bevölkerungsbewegung	método del movimiento natural	luonnollisen väestönlisäyksen menetelmä	méthode du mouvement naturel	metodo del movimento naturale	metoda ruchu naturalnego	MÉTODO das estatísticas vitais	Метод учета естественного движения населения
805-4	survival ratio technique	طريقة نسب التعمير	metoda koeficientů dožití	Methode der Überlebenswahrscheinlichkeiten	método de los coeficientes de supervivencia	menetelmä eloonjäämiskertounien	méthode des coefficients de survie	metodo dei coefficienti di sopravvivenza	metoda współczynników dożycia (mierzenie migracji)	MÉTODO do coeficiente de sobrevivência	Измерение миграции с помощью коэффициентов дожития
805-5	migration rate	معدلات الهجرة	míra stěhování	Mobilitätsziffer —Wanderungsziffer	tasas de migración	muuttaneisuusluku —muuttaneisuus —suhteellinen muuttoluku	taux de migration	quoziente generico del movimento migratorio	współczynniki migracji	TAXA de migração	Коэффициент миграции

Where it is not possible to determine migration directly, the indirect measurement of migration¹ involves estimates obtained by the residual² method, in which the change in population between two dates is compared with the change due to natural growth and the difference between the two figures attributed to migration. The vital statistics technique³ consists of computing the difference between total population change and natural increase (701-7). In the survival ratio technique⁴ the death rates of the inter-censal period are applied to age (326-5) the census population and to give the expected population at the end of the period. A comparison between the observed and the expected population may be used to estimate the balance of migration by age. If it were possible to obtain data on either net or gross migration and on the mean population of the area concerned, migration rates⁵ showing the incidence of migration could be computed. In practice, however, it is extremely difficult to specify the population at risk and such rates are therefore rarely used.
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