Anarchists hold different views as to the economic and legal
organisation of society; some favour collectivist anarchism,
anarcho-syndicalism or participatory economics while others support
market systems like mutualism, agorism, or anarcho-capitalism.
Others, such as anarcho-communists and post left anarchists prefer
no solid form of organization. According to The Oxford Companion to
Philosophy, "there is no single defining position that all
anarchists hold, beyond their rejection of compulsory government,
and those considered anarchists at best share a certain family
resemblance". Anarchist schools of thought differ fundamentally,
supporting anything from extreme individualism to complete
collectivism. Some anarchists have opposed coercion, while others
have supported it, particularly in the form of violent revolution
on the path to anarchy or utopia.