 Socialism excessively concentrates power in other ways, too. Socialists have often argued that capitalist economic power can be reined in by transferring the means of production to society, but Hayek (1944 [2007: 165]) replies that socialism does not “extinguish power”, it just concentrates power in one place. Friedman (1955 [2017: 4]) agrees, arguing that “political power by its nature tends to be concentrated” whereas economic power “can be highly deconcentrated if it is organized by means of an impersonal market”. The danger of concentrating power in political institutions is that “government is more subject to concentrated interest groups”, whereas markets are altered by the “diffuse pressure of millions of individual consumers”. Similarly, while governments promote monopolies, “the market breaks them down” (Butler 1985: 223). An advantage of markets is that people can refuse to engage in exchange, whereas under socialism everyone is caught up in a power struggle. Additionally, Hayek (1978: 99) argues that under socialism, political power determines the social position of individuals and groups, an ironic result of a doctrine whose aim is to diffuse power. Buchanan (1993: 246) agrees, though for somewhat different reasons.