Moderate# The Natural Rate of Unemployment: Separation and Finding Rates

MACRO-HYX@Y5

Suppose $\boldsymbol{s}$ is the proportion of employed works who become separated from their job and $\boldsymbol{f}$ is the proportion of unemployed workers who find jobs. Further assume that $\boldsymbol{s}$, $\boldsymbol{f}$ and the amount of people in the labor force are constant.

Which of the following equations correctly calculates the natural rate of unemployment?