IDEAS home Printed from https://ideas.repec.org/a/the/publsh/5081.html
   My bibliography  Save this article

Digital currency and privacy

Author

Listed:
  • Kang, Kee-Youn

    (School of Business, Yonsei University)

Abstract

We develop a monetary model in which a private company issues digital currency and uses payment data to estimate consumers' preferences. Sellers purchase preference information to produce goods that better match consumers' preferences. A monopoly arises in the digital currency industry, and digital currency is not issued if the inflation rate is sufficiently high. Due to reinforcing interactions between the value of preference information and trade volume, multiple equilibria (with and without digital currency) can exist depending on market structures for monetary exchanges. When left to market forces alone, socially efficient uses of payment data may not occur.

Suggested Citation

  • Kang, Kee-Youn, 2024. "Digital currency and privacy," Theoretical Economics, Econometric Society, vol. 19(1), January.
    • Handle: RePEc:the:publsh:5081
    as

    Download full text from publisher

    File URL: http://econtheory.org/ojs/index.php/te/article/viewFile/20240131/38406/1164
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Schilling, Linda & Uhlig, Harald, 2019. "Some simple bitcoin economics," Journal of Monetary Economics, Elsevier, vol. 106(C), pages 16-26.
    2. Williamson, Stephen D., 2022. "Central bank digital currency and flight to safety," Journal of Economic Dynamics and Control, Elsevier, vol. 142(C).
    3. Ricardo Lagos & Randall Wright, 2005. "A Unified Framework for Monetary Theory and Policy Analysis," Journal of Political Economy, University of Chicago Press, vol. 113(3), pages 463-484, June.
    4. Kalai, Ehud, 1977. "Proportional Solutions to Bargaining Situations: Interpersonal Utility Comparisons," Econometrica, Econometric Society, vol. 45(7), pages 1623-1630, October.
    5. Douglas W. Diamond & Philip H. Dybvig, 2000. "Bank runs, deposit insurance, and liquidity," Quarterly Review, Federal Reserve Bank of Minneapolis, vol. 24(Win), pages 14-23.
    6. Mei Dong, 2010. "Inflation And Variety," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 51(2), pages 401-420, May.
    7. Keister, Todd & Monnet, Cyril, 2022. "Central bank digital currency: Stability and information," Journal of Economic Dynamics and Control, Elsevier, vol. 142(C).
    8. Jean-Charles Rochet & Jean Tirole, 2003. "Platform Competition in Two-Sided Markets," Journal of the European Economic Association, MIT Press, vol. 1(4), pages 990-1029, June.
    9. Jesus Fernandez-Villaverde & Daniel Sanches & Linda Schilling & Harald Uhlig, 2021. "Central Bank Digital Currency: Central Banking For All?," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 41, pages 225-242, July.
    10. Stephen Williamson, 2022. "Central Bank Digital Currency: Welfare and Policy Implications," Journal of Political Economy, University of Chicago Press, vol. 130(11), pages 2829-2861.
    11. Ichihashi, Shota, 2021. "The economics of data externalities," Journal of Economic Theory, Elsevier, vol. 196(C).
    12. Guillaume Rocheteau & Randall Wright, 2005. "Money in Search Equilibrium, in Competitive Equilibrium, and in Competitive Search Equilibrium," Econometrica, Econometric Society, vol. 73(1), pages 175-202, January.
    13. Burdett, Kenneth & Trejos, Alberto & Wright, Randall, 2017. "A new suggestion for simplifying the theory of money," Journal of Economic Theory, Elsevier, vol. 172(C), pages 423-450.
    14. Benjamin Lester & Andrew Postlewaite & Randall Wright, 2012. "Information, Liquidity, Asset Prices, and Monetary Policy," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 79(3), pages 1209-1238.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Smets, Frank & Burlon, Lorenzo & Montes-Galdón, Carlos & Muñoz, Manuel A., 2022. "The optimal quantity of CBDC in a bank-based economy," CEPR Discussion Papers 16995, C.E.P.R. Discussion Papers.
    2. Chao He & Randall Wright & Yu Zhu, 2015. "Housing and Liquidity," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 18(3), pages 435-455, July.
    3. Schilling, Linda & Fernandez-Villaverde, Jesus & Uhlig, Harald, 2020. "Central Bank Digital Currency: When price and bank stability collide," MPRA Paper 113248, University Library of Munich, Germany, revised 01 May 2022.
    4. Assenmacher, Katrin & Bitter, Lea & Ristiniemi, Annukka, 2023. "CBDC and business cycle dynamics in a New Monetarist New Keynesian model," Working Paper Series 2811, European Central Bank.
    5. Liu, Tao & Lu, Dong & Woo, Wing Thye, 2019. "Trade, finance and international currency," Journal of Economic Behavior & Organization, Elsevier, vol. 164(C), pages 374-413.
    6. Marcelo A. T. Aragão, 2021. "A Few Things You Wanted to Know about the Economics of CBDCs, but were Afraid to Model: a survey of what we can learn from who has done," Working Papers Series 554, Central Bank of Brazil, Research Department.
    7. Keister, Todd & Monnet, Cyril, 2022. "Central bank digital currency: Stability and information," Journal of Economic Dynamics and Control, Elsevier, vol. 142(C).
    8. Sebastian Infante & Kyungmin Kim & Anna Orlik & André F. Silva & Robert J. Tetlow, 2022. "The Macroeconomic Implications of CBDC: A Review of the Literature," Finance and Economics Discussion Series 2022-076, Board of Governors of the Federal Reserve System (U.S.).
    9. Rocheteau, Guillaume & Wright, Randall, 2013. "Liquidity and asset-market dynamics," Journal of Monetary Economics, Elsevier, vol. 60(2), pages 275-294.
    10. Athanasios Geromichalos & Kuk Mo Jung, 2019. "Monetary policy and efficiency in over-the-counter financial trade," Canadian Journal of Economics, Canadian Economics Association, vol. 52(4), pages 1699-1754, November.
    11. Stylianos Asimakopoulos & Marco Lorusso & Francesco Ravazzolo, 2023. "A Bayesian DSGE Approach to Modelling Cryptocurrency"," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 51, pages 1012-1035, December.
    12. Françoise Vasselin, 2018. "The Competition Between Cash and Mobile Payments in Markets with Mobile Partnerships A Monetary Search Model Point of View," Working Papers hal-01722404, HAL.
    13. Williamson, Stephen D., 2022. "Central bank digital currency and flight to safety," Journal of Economic Dynamics and Control, Elsevier, vol. 142(C).
    14. Tarishi Matsuoka & Makoto Watanabe, 2023. "A Monetary Equilibrium with the Lender of Last Resort," CESifo Working Paper Series 10439, CESifo.
    15. Huber, Samuel & Kim, Jaehong, 2019. "The role of trading frictions in financial markets," Journal of Economic Dynamics and Control, Elsevier, vol. 99(C), pages 1-18.
    16. Aleksander Berentsen & Samuel Huber & Alessandro Marchesiani, 2015. "Financial Innovations, Money Demand, and the Welfare Cost of Inflation," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 47(S2), pages 223-261, June.
    17. Wei Cui & Randall Wright & Yu Zhu, 2022. "Endogenous Liquidity and Capital Reallocation," Staff Working Papers 22-27, Bank of Canada.
    18. Venky Venkateswaran & Randall Wright, 2014. "Pledgability and Liquidity: A New Monetarist Model of Financial and Macroeconomic Activity," NBER Macroeconomics Annual, University of Chicago Press, vol. 28(1), pages 227-270.
    19. Chao Gu & Fabrizio Mattesini & Randall Wright, 2016. "Money and Credit Redux," Econometrica, Econometric Society, vol. 84, pages 1-32, January.
    20. Wright, Randall, 2010. "A uniqueness proof for monetary steady state," Journal of Economic Theory, Elsevier, vol. 145(1), pages 382-391, January.

    More about this item

    Keywords

    Digital currency; privacy; transaction data; preference information; strategic complementarities;
    All these keywords.

    JEL classification:

    • E12 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Keynes; Keynesian; Post-Keynesian; Modern Monetary Theory
    • E40 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - General
    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:the:publsh:5081. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Martin J. Osborne (email available below). General contact details of provider: http://econtheory.org .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.