Title:               Lerner Index in Banking Market for Islamic Republic of Iran
Series ID:           DDOI04IRA066NWDB
Source:              World Bank
Release:             Global Financial Development (Not a Press Release)
Seasonal Adjustment: Not Seasonally Adjusted
Frequency:           Annual
Units:               Index
Date Range:          1997-01-01 to 2010-01-01
Last Updated:        2018-09-21 11:24 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
1997-01-01  0.002825000000000000
1998-01-01 -0.046070000000000000
1999-01-01  0.027097000000000003
2000-01-01  0.062278999999999994
2001-01-01  0.106281000000000000
2002-01-01  0.563125000000000000
2003-01-01  0.503337000000000000
2004-01-01  0.339035000000000000
2005-01-01  0.393586000000000000
2006-01-01  0.276773000000000000
2007-01-01  0.226698000000000000
2008-01-01  0.221662000000000000
2009-01-01  0.180140000000000020
2010-01-01  0.114594000000000000