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Title:               Lerner Index in Banking Market for Japan
Series ID:           DDOI04JPA066NWDB
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 11:21 AM 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  0.18367999999999998
1997-01-01  0.19955100000000000
1998-01-01  0.11528100000000000
1999-01-01  0.24778499999999998
2000-01-01  0.22457500000000000
2001-01-01  0.29427600000000004
2002-01-01  0.35600600000000000
2003-01-01  0.38181000000000000
2004-01-01  0.41973900000000003
2005-01-01  0.42188500000000000
2006-01-01  0.39966599999999997
2007-01-01  0.33947300000000000
2008-01-01  0.30587900000000000
2009-01-01  0.27401900000000000
2010-01-01  0.32980100000000000
2011-01-01  0.39311100000000000
2012-01-01  0.37192100000000000
2013-01-01  0.37243300000000000
2014-01-01  0.37364800000000000