The phenomenon known as dysgenics may occur both through internal factors (such as the more intelligent in a population having lower fertility) and/or external factors (such as race mixing with another population with lower intelligence). If a society stops subsidizing its violent, low-achieving populations, (of whatever ethnicity) it is likely that such dysfunctional populations will become reduced in number. If advanced societies continue to subsidize failed nations, we are likely to see an increasing proliferation of dysfunctional and violent populations.