Assessing effects of price regulation in retail payment systems

Kari Kemppainen

No 19/2005, Bank of Finland Research Discussion Papers from Bank of Finland

Abstract: This paper considers effects of price regulation in retail payment systems by applying the model of telecommunications competition by Laffont-Rey-Tirole (1998).In our two-country model world there is one retail payment network located in each country and markets are segmented à la Hotelling.We show that the optimal price under price regulation is the weighted average of pre-regulation domestic and cross-border prices where the degree of home-bias in making payments serves as the weight.Furthermore, we find that the general welfare effects of price regulation are ambiguous: gross social welfare is higher under price discrimination than under price regulation in the special case where costs of access to banking services (transportation costs) are high.However, there also exist cases where prohibitively high transaction costs make price discrimination to reduce total welfare.Finally, if transportation costs are reduced sufficiently, segmentation of payment markets is eliminated.Markets then become fullyserved as in the original Laffont-Rey-Tirole model, suggesting that price discrimination would be beneficial for welfare.

Keywords: payment systems; price regulation; retail payments (search for similar items in EconPapers)
JEL-codes: D49 G28 L59 (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:zbw:bofrdp:rdp2005_019

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