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The Role of Simultaneous Regulations of Credit Services and Payment Services on Competition

Guzin Akin (), Ahmet Aysan (), Denada Boriçi and Levent Yildiran

No 604, Working Papers from Economic Research Forum

Abstract: The paper investigates the competition among 21 credit card issuers in Turkey, covering the time period between 2002 and 2008. Analysis is conducted by using an estimation methodology designed by Panzar and Rosse (1982, 1987), where the degree of competition is measured by the sum of elasticities of total revenue with respect to input prices. Accounting for the total revenue rather than interest revenue fills the gap in previous studies, which look only at one side of the credit card market. Liquidity management cost, which was first shown by Shaffer and Thomas (2007) to be important for evaluating the degree of competition in the credit card industry, emerges as an important variable. The estimated Panzar-Rosse statistics are consistent with product differentiation, implying that Turkish credit card issuers are involved in monopolistic competition.

Date: 2011-01-08, Revised 2011-01-08
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