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Population and Economics 2(1): 168-193
doi:
10.3897/popecon.2.e36042
Published:
06 Apr 2018
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Authors
E. Zotova 
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Institute of Economic Forecasting RAS, Russia
Independent researcher, Russia
Conflict of interest
The authors have declared that no competing interests exist.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.