This video covers topic 5.3 of the AP Microeconomics Course Exam Description (CED). This video is about all firms that purchase labor (and other resources) in perfectly competitive factor markets. It also cover profit maximizing quantities of workers to hire, least cost combinations of resources, and profit maximizing combinations of resources.

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I would like to acknowlege the work of Dick Brunelle and Steven Reff from Reffonomics.com who’s work inspired many of the review games on ReviewEcon.com. I would also like to thank Francis McMann, James Chasey, and Steven Reff who taught me how to be an effective AP Economics teacher at AP summer institutes; as well as the countless high school teachers, and college professors from the AP readings, economics facebook groups, and #econtwitter.

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