The "culture of honor" in the Southern United States is hypothesized by some social scientists to have its roots in the livelihoods of the early settlers who first inhabited the region. Unlike settlers with an agricultural heritage who settled in New England, the Southern United States was settled by herders from Scotland, Northern Ireland, Northern England and the West Country. Herds, unlike crops, are vulnerable to theft because they are mobile and there is little government wherewithal to enforce property rights of herd animals. The theory is that developing a reputation for violent retribution against those who stole herd animals was one way to discourage theft. This thesis is limited, however, by modern evidence that a culture of honor in the American South is strongest not in the hill country, where this thesis suggests it has its cultural origins, but in Southern lowlands. These observers argue that poverty or religion, which has been distinctive in the American South since the Second Great Awakening in the 19th century, may be a more important source of this cultural phenomenon. Other theories point out that the culture of honor may have its roots in the settlement of the region by members of British aristocratic families.
Role of women
The Southern culture of honor also includes a notion that ladies should not be insulted by gentlemen. Southern gentlemen are also expected to be chivalrous towards women, in words and deeds. Although "culture of honor" qualities have been generally associated with men in the southern United States, women in this region have also been affected and even shown some of the same qualities. In Culture of Honor, it is stated that women play a part in the culture, both "through their role in the socialization process, as well as active participation." By passing these ideas along to their children, they are taking part in social conditioning.
Psychology
Laboratory research has demonstrated that men in honor cultures perceive interpersonal threats more readily than do men in other cultures, including increases in cortisol and testosterone levels following insults. In culture-of-honor states, high school students were found to be more likely to bring a weapon to school in the past month and over a 20-year period, there were more than twice as many school shootingsper capita. According to Lindsey Osterman and Ryan Brown in Culture of Honor and Violence Against the Self, "ndividuals living in honor states are at an especially high risk for committing suicide."
Sociology
The historian David Hackett Fischer, a Professor of History at Brandeis University, makes a case for an enduring genetic basis for a "willingness to resort to violence" in the four main chapters of his book Albion's Seed. He proposes that a Southern propensity for violence is inheritable by genetic changes wrought over generations living in traditional herding societies in Northern England, the Scottish Borders, and Irish Border Region. He proposes that this propensity has been transferred to other ethnic groups by shared culture, whence it can be traced to different urban populations of the United States. However, honor cultures were and are widely prevalent in Africa and many other places. Randolph Roth, in his American Homicide, states that the idea of a culture of honor is oversimplified. He argues that the violence often committed by Southerners resulted from social tensions. He hypothesizes that when people feel that they are denied social success or the means to attain it, they will be more prone to commit violent acts. His argument is that Southerners were in tension, possibly due to poor Whites being marginalized by rich Whites, free and enslaved Blacks being denied basic rights, and rich and politically empowered Whites having their power threatened by Northern politicians pushing for more federal control of the South, especially over abolition. He argues that issues over honor just triggered the already present hostility, and that people took their frustration out through violent acts often on the surface over issues of honor. He draws historical records of violence across the U.S. and Europe to show that violence largely accompanies perceptions of political weakness and the inability to advance oneself in society. Roth also shows that although the South was "obsessed with honor" in the mid-18th century, there was relatively little homicide. Barring under-reported crime against some groups, low homicide may simply have been gentlemanly self-restraint at a time when social order was stable, a trend that reverses in the 19th century and later.
War
A 2016 study suggests that honor culture increases the risk of war. The study found that international conflicts under Southern presidents are "twice as likely to involve uses of force, last on average twice as long, and are three times more likely to end in victory for the United States than disputes under non-Southern presidents. Other characteristics of Southern presidencies do not seem able to account for this pattern of results."