Codes and Frequencies
Most IPUMS data transformations are performed using variable harmonization tables that specify how each value in the source data is recoded. Some variables also require programming logic in addition to the harmonization table. The harmonization documents for this variable are:
MIG1_1_RU indicates the person's region of residence one year ago, in Russia.
Click on the Source Variables tab for information on place of residence for each sample year. Source variables may contain more geographic unit detail.
Comparability — General
Where boundaries changed over time, units were harmonized to create units with boundaries that remain stable over time.
Boundary changes and confidentiality issues:
- Aginsky Buryat District was merged with Chita Oblast in 2008 to form Zabaykalsky Krai
- Nenets Autonomous District has a very low number of migrants and was combined with Arkhangelsk Oblast.
The 2010 sample is missing place of enumeration data on two regions:
- Nenets Autonomous Region
- Chukotka Autonomous Region
MIG1_1_RU is only available for the 2010 sample.
For international migrants' country of previous residence, see MIGCTRY1
- Russia 2010: Persons age 1+ who moved within the last year
- Russia: 2010