<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Social Darwinism</topic></authority><related type="broader"><topic>sociological concepts</topic></related><variant type="other"><topic>Darwinism, Social</topic></variant> <note xml:lang="en"><![CDATA[ Theory in sociology that sociocultural advance is the product of intergroup conflict and competition and that therefore the socially elect classes (those possessing wealth and power) possess biological superiority in the struggle for existence. ]]></note></mads>