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Which one is not the measure of Internal Migration ?

  • A.Natural Growth Rate Method
  • B.Residual Method
  • C.Survival rate method
  • D.Net Migration rate

Answer: D

The official key gives net migration rate as the one that is not a measure of internal migration.

Natural-increase (vital statistics) and national growth rate methods, the residual method and the survival ratio method are the indirect ways of estimating net internal migration from census and vital data. The net migration rate is the indicator they yield, not a method of arriving at it, which is how the key separates it from the other three.

The distinction is fine, because the net migration rate is itself a measure of migration, so I kept the key but could not prove it from a source.

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