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Title:               Boone Indicator in Banking Market for Turkey
Series ID:           DDOI05TRA156NWDB
Source:              World Bank
Release:             Global Financial Development (Not a Press Release)
Seasonal Adjustment: Not Seasonally Adjusted
Frequency:           Annual
Units:               Index
Date Range:          1999-01-01 to 2014-01-01
Last Updated:        2018-09-21 1:51 PM CDT
Notes:               A measure of degree of competition based on profit-efficiency in the
                     banking market. It is calculated as the elasticity of profits to
                     marginal costs. An increase in the Boone indicator implies a
                     deterioration of the competitive conduct of financial intermediaries.
                     
                     A measure of degree of competition, calculated as the elasticity of
                     profits to marginal costs. To obtain the elasticity, the log of
                     profits (measured by return on assets) is regressed on the log of
                     marginal costs. The estimated coefficient (computed from the first
                     derivative of a trans-log cost function) is the elasticity. The
                     rationale behind the indicator is that higher profits are achieved by
                     more-efficient banks. Hence, the more negative the Boone indicator,
                     the higher the degree of competition is because the effect of
                     reallocation is stronger. Estimations of the Boone indicator in this
                     database follow the methodology used by Schaeck and Cihák 2010 with a
                     modification to use marginal costs instead of average costs. Regional
                     estimates of the Boone indicator pool the bank data by regions (for
                     more information, see Hay and Liu 1997; Boone 2001; Boone, Griffith,
                     and Harrison 2005). (Calculated from underlying bank-by-bank data from
                     Bankscope)
                     
                     Source Code: GFDD.OI.05

DATE                        VALUE
1999-01-01  -0.148433999999999980
2000-01-01  -0.403434000000000000
2001-01-01  -0.111562000000000000
2002-01-01  -0.216036999999999980
2003-01-01  -0.166692000000000000
2004-01-01  -0.175364000000000020
2005-01-01  -0.075566000000000000
2006-01-01  -0.087783000000000000
2007-01-01  -0.090519000000000000
2008-01-01  -0.062748000000000000
2009-01-01  -0.058672000000000000
2010-01-01  -0.035930000000000004
2011-01-01  -0.049607000000000000
2012-01-01  -0.031468000000000000
2013-01-01  -0.021391999999999998
2014-01-01  -0.032533000000000000