What does it mean to measure a migration rate? How do migration rates affect populations? Explain your answer in at least two or three sentences.

To study net migration rate, we're going to peek over Jorge's shoulder as he does his job. Jorge is a new population analyst who advises his country's central government on what types of projects should receive funding.

The net migration rate for a given period of time is the difference between how many people come from other regions to live in the region being discussed. These migrations are known as immigration and how many people leave the region to live elsewhere, which is known as emigration. A positive net migration rate means that more people are moving into an area than are leaving it. Conversely, a negative net migration rate means that more people are moving out of an area than are moving into it. The net migration rate, just like many other population statistics, is most often reported per 1,000 residents over a period of one year and using estimated mid-year population.