Title:               Boone Indicator in Banking Market for Ghana
Series ID:           DDOI05GHA156NWDB
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:        2022-03-23 4:28 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  -0.21100500000000003
2000-01-01  -0.14448300000000000
2001-01-01  -0.15774300000000000
2002-01-01  -0.20111300000000001
2003-01-01  -0.17100700000000000
2004-01-01   0.00000000000000000
2005-01-01  -0.15999200000000000
2006-01-01  -0.17768599999999998
2007-01-01  -0.17531800000000000
2008-01-01  -0.14776700000000000
2009-01-01  -0.14357700000000000
2010-01-01  -0.13956500000000002
2011-01-01  -0.13235000000000000
2012-01-01  -0.13174400000000000
2013-01-01  -0.13750100000000000
2014-01-01  -0.13354100000000002