Here are the definitions everybody should know before they participate in one of these.
Working age population: population between the ages of 15 and 64
Labour force: population which either holds a job or is looking for a job
Participation rate: labour force / working age population
Employment rate: population holding a job / working age population
Unemployment rate: (labour force - population holding a job) / labour force
Participation rate in the US hovers around 66%. Population growth means that when the participation rate holds constant the labour force grows by ~150 000 per month. When the participation rate fluctuates the labour force can change significantly (an increase from 66 to 67% would add over 2 million workers to the labour force)
Working age population: population between the ages of 15 and 64
Labour force: population which either holds a job or is looking for a job
Participation rate: labour force / working age population
Employment rate: population holding a job / working age population
Unemployment rate: (labour force - population holding a job) / labour force
Participation rate in the US hovers around 66%. Population growth means that when the participation rate holds constant the labour force grows by ~150 000 per month. When the participation rate fluctuates the labour force can change significantly (an increase from 66 to 67% would add over 2 million workers to the labour force)
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