Migrants move primarily for economic motive, whereas refugees may have multitudes of reasons. People did move in the human history, however the movement around the world been more than ever. A large portion of people in the developing world aspire to migrate to high S society for a perceived prosperity. Social trust vector of a migrant in a new society may depend on his capabilities, say PE, and hence for those individual, changes in trust vector sometimes can outweigh the merits of S. In selective migration an administration tends to select individual with high I or high enough KE or PE in the society. Migration and refugee can be related to widening rise and rung of the poverty ladder due to economic growth and its inherent nature of toll on poverty. Whatever be the reasons for the movement, push and pull (a vector field) factors have sometimes led to social unrest.
