1. Understanding Men in Contemporary Society: A deeper look at the operational sex ratio and the proportion of married men in adulthood. Lisa Jamar, Melanie de la Cruz, Calvin Torng, Scott Wolfson Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104

2. Introduction  A: Direct relationship between operational sex ratio and proportion of married men in adulthood.  B: Women are more selective than men because of greater parental investment and lower reproductive ceiling. Life History Theory: Study of life cycles and life history traits in an ecological context. Illustrates how organisms must make trade-offs in the allocation of resources. Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104

3. Sex Ratios  Differing sex ratios High sex ratio : Higher marriage rate in mate Low sex ratio : Higher rate of promiscuity and desire for short-term Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104

4. Hypotheses  First : At a younger age, women would marry more often than men, but more men would be married in adulthood  Second : The higher rate of marriage in male adulthood was due to men capitalizing on the low sex ratio of prospective husbands Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104

5. Percentages of Men and Women Who Are Unmarried Across Adulthood Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104 Adapted from Kruger, 2001, p. 99

6. Methods  Unmarried men and women from 681 different zip codes  Of the 10 largest cities in the US  Gathered through census  18+ years old Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104

7. Results  The OSR (Operational Sex Ratio) for participants ranged from 92 in Philadelphia to 112 in Phoenix.  Women were more likely to be married than men from ages 18 to 34  Men were more likely to be married than women from ages 45+  All results were significant except for the age group of 18- 19 Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104

8. Critical Review  Hypothesis is significant concerning sex ratio and men across adulthood  Young men in low sex ratio populations have lower marital rates than those in high sex ratio populations  Older men in low sex ratio populations are more likely to be married than those in high sex ratio populations  In young adulthood men use to their advantage their scarcity to increase chances of marrying Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104

9. Video China's Bachelors: The Gender Imbalance Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104

10. The End Kruger, D.J. (2009) When men are scarce, good men are even harder to find: Life history, the sex ratio proportion of men married. The Journal Of Social, Evolutionary, And Cultural Psychology, 3(2), 93-104