"Among young men [...] and the growing percentage who coreside with their parents all contribute significantly to the decline in casual sex. The authors find no

"Among young men [...] and the growing percentage who coreside with their parents all contribute significantly to the decline in casual sex. The authors find no evidence that trends in young adults’ economic circumstances, [..] explain the recent decline in casual sexual activity." Isnt the increase in coreside with parents due to economic circumstances...?