Answer: 83%
Step-by-step explanation:
The Labour Force Participation Rate is a measure that checks the activeness of a nation's workforce.
It is calculated by dividing the segment of the population that are either working or ACTIVELY seeking employment by the total number of working age people in the economy that are not in prison.
It is assumed that unemployed people are Actively seeking employment.
In the above scenario therefore, the active population are,
= (320 million employed + 12 million unemployed )/400 million
The rest of the population are either unavailable for work or not actively seeking employment.
= 332/400
= 0.83
= 83%
The labor force participation rate in this economy is 83%