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Title:               Lerner Index in Banking Market for Turkey
Series ID:           DDOI04TRA066NWDB
Source:              World Bank
Release:             Global Financial Development (Not a Press Release)
Seasonal Adjustment: Not Seasonally Adjusted
Frequency:           Annual
Units:               Index
Date Range:          1996-01-01 to 2014-01-01
Last Updated:        2018-09-21 1:51 PM CDT
Notes:               A measure of market power in the banking market. It compares output
                     pricing and marginal costs (that is, markup). An increase in the
                     Lerner index indicates a deterioration of the competitive conduct of
                     financial intermediaries.
                     
                     A measure of market power in the banking market. It is defined as the
                     difference between output prices and marginal costs (relative to
                     prices). Prices are calculated as total bank revenue over assets,
                     whereas marginal costs are obtained from an estimated translog cost
                     function with respect to output. Higher values of the Lerner index
                     indicate less bank competition. Lerner Index estimations follow the
                     methodology described in Demirgüç-Kunt and Martínez Pería (2010).
                     (Calculated from underlying bank-by-bank data from Bankscope)
                     
                     Source Code: GFDD.OI.04

DATE                      VALUE
1996-01-01  0.12235300000000000
1997-01-01  0.11446300000000001
1998-01-01  0.15155500000000000
1999-01-01  0.16998500000000000
2000-01-01  0.06666799999999999
2001-01-01 -0.03816500000000000
2002-01-01  0.08529700000000000
2003-01-01  0.17848400000000000
2004-01-01  0.23076900000000000
2005-01-01  0.24313900000000000
2006-01-01  0.19664900000000000
2007-01-01  0.20710000000000000
2008-01-01  0.16460400000000000
2009-01-01  0.31053800000000004
2010-01-01  0.29071800000000000
2011-01-01  0.23416399999999998
2012-01-01  0.26475900000000000
2013-01-01  0.26758500000000000
2014-01-01  0.21770500000000000