According to the prevailing theory, ancient and modern monetary economies are market economies that evolved from barter. The money, which was initially invented to facilitate this exchange, later served for land purchases and thus led to private property ownership. To explain the dynamics of production, this theory, shared by Aristotle, Marx, Weber, and all Nobel laureates in economics, must assume a universal human drive for profit. However, as Heinsohn demonstrates, the market was not a place for exchange, but rather the location where private owners sought to obtain the means for their goods in order to settle their debts. The beginning of monetary development was not barter, but the interest arising from private ownership. Since private owners were no longer part of the collective.