Many bloggers have theorized that men and women have different value in the sexual market place relative to age. This concept is commonly referred to as "sexual market value."

Under this theory, a woman's sexual value is highest from age 18 until about 27 years old. As a woman ages into her 30s and 40s, her sexual market begins to rapidly decline as she ages. In contrast, a man's sexual market value is lowest in his teens and twenties, and then gradually increases as he ages. A man's sexual market value does not peak until he hits approximately 36 years old. As men age into their 40s, the decline is much less rapid than women, in contrast to a woman's more rapid decline. The practical affect is that women stand the best chance of mating with a male whose value is high early in life, while men stand the best chance of mating with a woman whose value is high later in life.

Some have suggested that modern society, which pushes women into traditional careers, is not compatible with the reality of the sexual market value.[1]. By the time American women have graduated college and become established in their career, many are too old to bear children absent serious health risks.[2]. Notably, scientific studies have concluded that women are racing against a biological clock, as having children past the age of 35 is a serious risk.[3]. However, men can have children well into their 40s and 50s. [4]. This would seem to suggest that from an evolutionary, cultural, and biological standpoint, women benefit by bearing children earlier in life, while men benefit by bearing children later in life.

Rollo notes:

Now class, please address your attention to the critical 15-16 year span between a woman’s peak SMV and that of men’s. It should come as no surprise that this span is generally the most socially tumultuous between the sexes. The majority of first marriages take place here, single-motherhood takes place here, advanced degrees, career establishments, hitting the Wall, and many other significant life events occur in this life stage. So it is with a profound sense of importance that we understand the SMV context, and the SMP’s influence as prescribed to each sexes experience during this period.

At age 30 men are just beginning to manifest some proto-awareness of their sexual value, while simultaneously women are becoming painfully aware of their marked inability to compete with their sexual competitors indefinitely. This is the point of comparative SMV: when both sexes are situationally at about the same level of valuation (5). The conflict in this is that men are just beginning to realize their potential while women must struggle with the declination of their own.

This is the primary phase during which women must cash in their biological chips in the hope that the best men they can invest their hypergamy with will not be so aware of their innate SMV potential that they would choose a younger woman (22-24) during her peak phase over her. . . .

The confluence between both sexes’ comparative SMV is perhaps the most critical stage of life for feminine hypergamy. She must be able to keep him ignorant of his SMV potential long enough to optimize her hypergamy. In men’s case, his imperative is to awaken to his SMV (or his potential of it) before he has made life-altering decisions based on a lack understanding his potential.

Every man who I’ve ever known to tell me how he wished he’d known of the manosphere or read my writing before getting married or ‘accidentally’ knocking up his BPD girlfriend has his regret rooted in not making this SMV awareness connection. They tended to value women more greatly than their own potential for a later realized SMV peak – or they never realized that peak due to not making this awareness connection.