Is this an economics question?
What was the effect on children's asthma rates when it became socially acceptable for women to smoke out of doors?
Does your answer change if the question becomes:
How much of the decline in children's asthma rates is attributable to women not doing all of their smoking at home?
Does your answer change if the question becomes:
How much of the decline in children's asthma rates is attributable to women not doing all of their smoking at home?
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