Human Nature

, Volume 27, Issue 4, pp 489–500 | Cite as

Marriage Markets and Male Mating Effort: Violence and Crime Are Elevated Where Men Are Rare

Article

Abstract

The negative social outcomes in populations with male-biased sex ratios are a growing concern. In general, the expectation is of heightened violence as a result of excess men engaging in antisocial behavior and crime, thereby threatening societal stability. While intuitive, these claims are largely unsupported in the literature. Using mating market theory as our guide, we examine indicators of male mating effort, including (1) violent competition between men (homicide, aggravated assault) and (2) indicators of uncommitted sexual behavior (rape, sex offenses, and prostitution). Our unit of analysis is U.S. county-level data. We find that counties with more men have lower rates of crime and violent behavior. Our findings challenge conventional claims of male excess leading to elevated levels of violence. Instead, in support of mating market predictions, we find that criminal and violent behavior related to male mating effort is least common in male-biased sex ratios. We discuss the implications of our findings for public policy regarding incarceration and criminal behavior.

Keywords

Sex ratio Parental investment Mating market Sexual selection Violence Competition Crime 

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Department of AnthropologyUniversity of UtahSalt Lake CityUSA
  2. 2.Department of Family and Consumer StudiesUniversity of UtahSalt Lake CityUSA
  3. 3.Population Sciences, Huntsman Cancer InstituteUniversity of UtahSalt Lake CityUSA

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