 The poorest classes in a developing country may lack the resources needed to mount an attempt to cross illegally, or the connections to friends or family already in the destination country.Studies from the Pew Hispanic Center have shown that the education and wage levels of illegal Mexican immigrants in the US are around the median for Mexico and that they are not a suitable predictor of one's choice to immigrate.Other examples do show that increases in poverty, especially when associated with immediate crises, can increase the likelihood of illegal migration.