Source: "Theory of the firm: Managerial behavior, agency costs and ownership structure", 1976, p. 308
“The relationship of agency is one of the oldest and commonest codified codes of social interaction. We will say that an agency relationship has arisen between two (or more) parties when one, designated as the agent, acts for the other, designated the principal, in a particular domain of decision problems. Examples of agency are universal.”
Stephen A. Ross "The Economic Theory of Agency: The Principal's Problem," Amer. Econom. Rev., 63 (1973), 134-139; As cited in Eisenhardt (1985, 136)
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Source: "Theory of the firm: Managerial behavior, agency costs and ownership structure", 1976, p. 308-9
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Source: https://www.youtube.com/watch?v=y6lqx-jLCac Folake Solanke in an interview with Channels.

An interview with gubernatorial candidate Ed Gillespie http://www.fredericksburg.com/sports/outdoors/ken-perrotte-an-interview-with-gubernatorial-candidate-ed-gillespie/article_ac9bcf45-054a-5a84-b7e2-e5214e3209e7.html (October 25, 2017)

The NewsHour with Jim Lehrer (18 September 2007), " Alan Greenspan Interview with Jim Lehrer http://www.pbs.org/newshour/bb/business-july-dec07-greenspan_09-18/".
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Source: "Agency theory: An assessment and review," 1989, p. 57 Abstract

2010 Senate Campaign, Remarks regarding Christopher Dodd
Source: Peter Schiff criticizes Chris Dodd's plan to overhaul financial regulators, Altimari, Daniela, September 22, 2009 11:26 AM, Capitol Watch Blog, Courant, 2009-09-23 http://blogs.courant.com/capitol_watch/2009/09/peter-schiff-criticizes-chris.html,
Globalisation Lived Locally: A Labour Geography Perspective on Control, Conflict and Response among Workers in Kerala https://www.researchgate.net/publication/263155852_Globalisation_Lived_Locally_A_Labour_Geography_Perspective_on_Control_Conflict_and_Response_among_Workers_in_Kerala, 2012, at ResearchGate

Source: quoted in #MeToo founder Tarana Burke: ‘You have to use your privilege to serve other people’, Emma Brockes, 15 Jan 2018, 2018 https://www.theguardian.com/world/2018/jan/15/me-too-founder-tarana-burke-women-sexual-assault,