The capitalist mode of production may exist within societies with differing political systems (e.g. liberal democracy, Social democracy, fascism, Communist state, Czarism), and alongside different social structures such as tribalism, the caste system, an agrarian-based peasant society, urban industrial society and post-industrialism. Although capitalism has existed in the form of merchant activity, banking, renting land, and small-scale manufactures in previous stages of history, it was usually a relatively minor activity and secondary to the dominant forms of social organization and production with the prevailing property system keeping commerce within clear limits.[3]