 For instance, in work with Nicole Hildebrandt, McKenzie finds that migration improves child health by increasing rural Mexican households of emigrants both by raising their wealth and health knowledge.In another study with Hillel Rapoport in rural Mexico, McKenzie finds that migration depresses schooling attendance and attainment as boys emigrate and girls take up more household tasks.In further work, McKenzie and Rapoport have explored the role of migrant networks in Mexico, which are found to substantially decrease the costs for future migrants and overall reduce inequality across communities with high levels of past migration.