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Article . 2024 . Peer-reviewed
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Article . 2023 . Peer-reviewed
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Other literature type . 2024
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Research . 2024
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Cbdc: Banking and Anonymity

Authors: Cheng, Yuteng; Izumi, Ryuichiro ;

Cbdc: Banking and Anonymity

Abstract

Nous examinons le degré optimal d’anonymat des utilisateurs d’une monnaie numérique de banque centrale (MNBC) dans un contexte de crédit bancaire aux entreprises. L’anonymat – entendu comme l’impossibilité pour la banque prêteuse de détecter des mesures prises par un emprunteur qui pourraient nuire à l’examen de ses fonds – influe sur le choix des instruments de paiement, et ce, en raison de son incidence sur les décisions de la banque en matière de prêts. Nous montrons qu’un degré modéré d’anonymat associé à la MNBC entraîne une inefficacité de l’équilibre non séparateur. Pour éviter cette situation, le degré d’anonymat lié à la MNBC devrait être soit faible, ce qui la rendrait moins attrayante, soit élevé, ce qui découragerait le crédit bancaire. Plus précisément, le degré d’anonymat devrait être élevé lorsque la MNBC est très avantageuse pour les ventes, et faible dans les autres cas. Toutefois, la concurrence entre les dépôts bancaires et la MNBC pourrait rendre difficile l’application d’un faible degré d’anonymat.

We examine the optimal amount of user anonymity in a central bank digital currency (CBDC) in the context of bank lending. Anonymity, defined as the lender’s inability to discern an entrepreneur’s actions that enable fund diversion, influences the choice of payment instrument due to its impact on a bank’s lending decisions. We show that moderate anonymity in CBDC leads to an inefficient pooling equilibrium. To avoid this, CBDC anonymity should be either low, reducing attractiveness, or high, discouraging bank lending. Specifically, the anonymity should be high when CBDC significantly benefits sales, and low otherwise. However, competition between deposits and CBDC may hinder the implementation of low anonymity.

Related Organizations
Keywords

G28, Digital currencies and fintech, ddc:330, E58, E42

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
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