[Question] What determines female romantic “market value”?

There had been multiple conversations on this website about what makes men attractive to women, how can men improve along those axes, et cetera (example). However, AFAICT there were few discussions of what makes women attractive to men. (It can’t be just about looks, right? Right??) The men reading this website are probably not representative of the overall population, but this bias is positively correlated with the kind of men I’m interested in, so as far as I’m concerned it’s not a problem. Among other things, I’m interested to understand how age factors into the equation (I’m middle-aged).