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This interactive visualization depicts current emigration and immigration patterns.  Patterns are depicted on a typical map as well as on a bar chart display (selected by tabs at the top).  

To visualize current emigration and immigration patterns, select a direction of migration on the lower left and move the slider to change the amount of human movement. 

Switching between the views (tabs at the top) and direction of migration reveals differences in patterns across the world. (Noftsinger Newbold Gray Delp, B.  2008.

An Innovative Approach to Studying Migration: Applying Functional Mapping to Examine Global Migration Trends.  Forum on Public Policy.