Though a decrease in the rate of inflation and the unemployment growth rate are related to each other, the relationship does not depend on the speed of disinflation. Simply speaking, the rate of inflation can be slowed by increasing the rate of unemployment at a smaller rate spread over many years—or disinflation can be achieved quickly by increasing the rate of unemployment at a higher rate spread over a few years. When we sum the rate of unemployment over the years, it is same.