List of Motivation Theories, Their Propounder and Year of Origin

Propounder	Name of the Motivation Theory	Year
Abraham Harold Maslow	Hierarchy of Needs Theory	1943
Chris Argyris	Theory of Immaturity-Maturity	1957
Frederick Irving Herzberg	Two-Factor Theory (Motivation-Hygiene Theory and Dual-factor Theory)	1959
Douglas Murray McGregor	Theory X and Theory Y	1960
David Clarence McClelland	Three Needs Theory	1960
Victor Harold Vroom	The Expectancy Theory of Motivation	1964
William G. "Bill" Ouchi	Theory Z	1981

Dr. Badan Barman at present working as an Assistant Professor in the Department of Library and Information Science, Gauhati University, Guwahati-781014, Assam, India. He is the creator of the LIS Links (http://www.lislinks.com) - India’s most popular social networking website for Library and Information Science professionals. He also created the Open Access Journals Search Engine (OAJSE) (http://www.oajse.com), UGC NET Guide (http://www.netugc.com), Assam Archive (http://www.assamarchive.com) and LIS Study (http://www.lisstudy.com) website.