Market Structure and Effects of the Banking Sector

In this study, the market structure of the Turkish banking sector was investigated between 2004-2014.Herfindahl-Hirschman Index This result is important in the banking sector in terms of the efficient use of resources and the demonstration of the efficiency of savings into investments: This result supports the findings of Claessens and Laeven ( 2004), Abbasoğlu et al. (2007), Özcan ( 2012), Uzgören and Tarhan (2012), in the literatüre.CR4 and Herfindahl-Hirschman the calculation of the Index study the Turkish banking sector have reached the conclusion a monopolistic competitive market structure.