More recently, Cox and Fisher (2009) analyzed the titles of contemporary romance novels to determine if their popularity might be related to evolutionary themes that would be expected to have widespread appeal when it comes to some of the unique and recurrent reproductive issues that women confront. The five most common words featured in romance novel titles were love, bride, baby, man, and marriage, in that order. Common themes extracted from these titles included commitment, reproduction, masculine/high ranking suitors, and resources. Because the costs of reproduction are so much higher for women than men, because women have a strong vested.
