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Title:               Lerner Index in Banking Market for New Zealand
Series ID:           DDOI04NZA066NWDB
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 2011-01-01
Last Updated:        2022-03-23 4:24 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  0.18246099999999998
1997-01-01  0.19446200000000000
1998-01-01  0.10707300000000000
1999-01-01  0.13696400000000000
2000-01-01  0.11275900000000000
2001-01-01  0.13667900000000000
2002-01-01  0.13309900000000000
2003-01-01  0.07411200000000000
2004-01-01  0.15543700000000000
2005-01-01  0.13699200000000000
2006-01-01  0.20744800000000000
2007-01-01  0.13884500000000000
2008-01-01  0.09766600000000000
2009-01-01  0.20229700000000000
2010-01-01  0.23013699999999998
2011-01-01  0.23531999999999997