who is associated with study of power in politics
Power (social and political) Social psychologists John R. P. French and Bertram Raven, in a now-classic study (1959),[4] developed a schema of sources of power by which to analyse how power plays work (or fail to work) in a specific relationship.
Representative democracy It is an element of both the parliamentary and the presidential systems of government and is typically used in a lower chamber such as the House of Commons of the United Kingdom, Lok Sabha of India, and may be curtailed by constitutional constraints such as an upper chamber. It has been described by some political theorists including Robert A. Dahl, Gregory Houston and Ian Liebenberg as polyarchy.[4][5] In it the power is in the hands of the representatives who are elected by the people.