Title:               Lerner Index in Banking Market for United States
Series ID:           DDOI04USA066NWDB
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  0.20553100000000000
1997-01-01  0.22982399999999997
1998-01-01  0.21284699999999998
1999-01-01  0.23751599999999998
2000-01-01  0.20780300000000002
2001-01-01  0.23776000000000000
2002-01-01  0.30252900000000000
2003-01-01  0.32411400000000000
2004-01-01  0.29434299999999997
2005-01-01  0.27538300000000000
2006-01-01  0.24417800000000000
2007-01-01  0.20086600000000002
2008-01-01  0.20490000000000000
2009-01-01  0.29134400000000000
2010-01-01  0.31664000000000003
2011-01-01  0.31251500000000000
2012-01-01  0.31342300000000000
2013-01-01  0.33707900000000000
2014-01-01  0.33415900000000004