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Imposing Choice on the Uninformed: The Case of Dynamic Currency Conversion

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  • Ewerhart, Christian
  • Li, Sheng
Abstract
Over the course of the past two decades, it has become a common experience for consumers authorizing an international transaction via credit card to be invited to choose the currency in which they wish the transaction to be executed. While this choice, made feasible by a technology known as dynamic currency conversion (DCC), seems to foster competition, we argue that the opposite is the case. In fact, the unique pure-strategy equilibrium in a natural fee-setting game, with uninformed and possibly inattentive consumers, turns out to be highly asymmetric, entailing fees for the service provider that persistently exceed the monopoly level. Although losses in welfare may be substantial, a regulatory solution is unlikely to come about due to a global free-rider problem.

Suggested Citation

  • Ewerhart, Christian & Li, Sheng, 2023. "Imposing Choice on the Uninformed: The Case of Dynamic Currency Conversion," Journal of Banking & Finance, Elsevier, vol. 154(C).
    • Handle: RePEc:eee:jbfina:v:154:y:2023:i:c:s0378426623001231
    DOI: 10.1016/j.jbankfin.2023.106917
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    More about this item

    Keywords

    Dynamic currency conversion; Credit cards; Price competition; Monopoly; Free-rider problem; Rational inattention;
    All these keywords.

    JEL classification:

    • D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • G53 - Financial Economics - - Household Finance - - - Financial Literacy

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