Women post sexier pictures of themselves on Instagram in areas of greater income inequality. This is because these areas have fewer high status men to date or marry, thus greater intrasexual competition.
Could it also be the following?
There are areas with women who are already sexier for some other reason.
Sexier women find it easier and/or more rewarding to post sexy pictures of themselves on Instagram.
Some high-status men will move to the areas that have more supply of sexy women.
Could it also be the following?
There are areas with women who are already sexier for some other reason.
Sexier women find it easier and/or more rewarding to post sexy pictures of themselves on Instagram.
Some high-status men will move to the areas that have more supply of sexy women.