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Submitted by John F. May on

Dear Shanta:

I read this Blog with great interest, as you bring together in a short space a number of important points.

Two additional topics are worth pursuing. First, the migration thresholds in receiving countries; beyond a certain number of immigrants, their social and even economic integration becomes more problematic. There is a growing body of literature on this.

Second, the circulation migration; a lot of current research looks at migration as one finite step, moving from A to B, whereas migrants can actually circulate (going back and forth several times) between A and B. Actually, this might be one the key policy paths for the future.

The Population Reference Bureau has just published "The Global Challenge of Managing Migration", a new Population Bulletin (see


John F. May
Visiting Scholar
Population Reference Bureau