^Gregory and Stuart, Paul and Robert (2004). Comparing Economic Systems in the Twenty-First Century, Seventh Edition. George Hoffman. p. 538. ISBN0-618-26181-8. Market Economy: Economy in which fundamentals of supply and demand provide signals regarding resource utilization.
^Altvater, E. (1993). The Future of the Market: An Essay on the Regulation of Money and Nature After the Collapse of "Actually Existing Socialism. Verso. p. 57.