Answer: Increase
Step-by-step explanation:
The Added Worker effect refers to a scenario where more family members typically women, enter the job market when the principal breadwinner in the household becomes unemployed. This is done to increase the income streams of the household to cushion the effect of the breadwinner becoming unemployed.
In a recession, more people will lose jobs so more members of a family will join the job market looking to give their households more income streams so the labor force will increase in size.