Cohort-based Migration Metric (CMM)

A Cohort-based Migration Metric (CMM) is developed to gauge net migration at the state and district level.This metric considers net migration to be the percentage change in population between the 10-19 year-old cohort in an initial census period and the 20-29 yearold cohort in the same area a decade later, after correcting for mortality effects.

• Internal migration rates have dipped in Maharashtra and surged in Tamil Nadu and Kerala reflecting the growing pull of southern states in India’s migration dynamics.
• Out-migration rates increased in Madhya Pradesh, Bihar and Uttar Pradesh and have dipped in Assam.
• Relatively less developed states such as Bihar and ....