This paper looks at how people have been moving between big cities and smaller towns in Canada from 1966 to 1982. The researchers used three different ways to understand this movement. They looked at how many people moved in and out of each place, compared the actual population in each area to what it would be if people kept moving at the same rate, and studied the overall flow of people between regions. These methods showed that migration has a big impact on which areas grow and which ones shrink over time. They also revealed changes in migration patterns that were not obvious before.