Initial research: I've found papers by Clark and Hatfield (1989) and Buss and Schmidt (1993) that seem to lend support to the idea of heterosexual females being more selective than heterosexual males.
Motivation: I have constructed a game theoretic model of romantic advances. Within this model, it is possible to show that certain Nash equilibria are Pareto improvements upon others depending on which sex is more selective. Thus, I'm looking for empirical evidence as to which (if any) sex is more selective
Does anyone know of any other empirical studies that support or go against the idea that heterosexual women are more selective in who they date, have sex with or have relationships than heterosexual men?
References
Buss, D. M., & Schmitt, D. P. (1993). Sexual strategies theory: an evolutionary perspective on human mating. Psychological Review, 100(2), 204.
Clark, R. D., & Hatfield, E. (1989). Gender differences in receptivity to sexual offers. Journal of Psychology & Human Sexuality, 2(1), 39-55.