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economics
summarize this video in 120 words must provide one other reference on same topic:
Microeconomics: Understanding the market system [Video file]. (2011). Retrieved March 26, 2017, from http://fod.infobase.com/PortalPlaylists.aspx?wID=18566&xtid=48959
It is in the database Films on Demand, in the UOPX Online Library.