Narrow search
Showing 1 - 10 of 3,250
Cover Image
Eggs in one basket : security and convenience of digital currencies
Kahn, Charles M.; Rivadeneyra, Francisco; Wong, Tsz-Nga - 2021 - Last updated: January 28, 2021
Digital currencies store balances in anonymous electronic addresses. We analyze the tradeoffs between the safety and convenience of aggregating balances in addresses, electronic wallets and banks. In our model, agents balance the risk of theft of a large account with the cost to safeguarding a...
Persistent link: https://www.econbiz.de/10012421984
Cover Image
Safe payments
Chiu, Jonathan; Davoodalhosseini, Seyed Mohammadreza; … - 2020 - Last updated: December 10, 2020
We use a simple model to study whether private payment systems based on bank deposits can provide the optimal level of safety. In the model, bank deposits backed by projects are subject to default risk that can be mitigated by a depositor's ex ante and ex post monitoring. Safe payment...
Persistent link: https://www.econbiz.de/10012388751
Cover Image
Anonymous credentials : secret-free and quantum-safe
Kazmi, Raza Ali; Minwalla, Cyrus - 2023 - Last updated: September 28, 2023
An anonymous credential mechanism is a set of protocols that allows users to obtain credentials from an organization and demonstrate ownership of these credentials without compromising users' privacy. In this work, we construct the first secret-free and quantum-safe credential mechanism. The...
Persistent link: https://www.econbiz.de/10014456631
Cover Image
Analysis of DeFi oracles
Deng, Xun; Beillahi, Sidi Mohamed; Minwalla, Cyrus; Du, Han - 2024
This paper presents OVer, a framework designed to automatically analyze the behaviour of decentralized finance (DeFi) protocols when subjected to a "skewed" oracle input. OVer firstly performs a symbolic analysis on the given contract and constructs a model of constraints. Then, the framework...
Persistent link: https://www.econbiz.de/10014577871
Cover Image
The role of public money in the digital age by
Rivadeneyra, Francisco; Hendry, Scott; García, Alejandro - 2024
retail public money - whether in the form of cash, a central bank digital currency or both - is a necessary component of such …
Persistent link: https://www.econbiz.de/10014577905
Cover Image
Central Bank digital currencies : a framework for assessing why and how
Fung, Ben Siu-cheong; Hałaburda, Hanna - 2016
Digital currencies have attracted strong interest in recent years and have the potential to become widely adopted for use in making payments. Public authorities and central banks around the world are closely monitoring developments in digital currencies and studying their implications for the...
Persistent link: https://www.econbiz.de/10011565226
Cover Image
Cash and COVID-19 : what happened in 2021
Chen, Heng; Engert, Walter; Huynh, Kim P.; O'Habib, Daneal - 2022
We provide an update on the impact the COVID-19 pandemic on the demand for cash and the use of methods of payment based … findings are as follows: Cash in circulation remained high throughout 2021, driven mainly by demand for largedenomination notes …; Canadians' holdings of cash on hand in April (median $70) and August (median $80) were comparable to results seen in 2020. Other …
Persistent link: https://www.econbiz.de/10013175440
Cover Image
Monetary policy implementation and payment system modernization
Witmer, Jonathan - 2020 - Last updated: June 30, 2020
24/7 payment settlement may impact the demand for central bank reserves and thus could have an effect on monetary policy implementation. Using the standard workhorse model of monetary policy implementation (Poole, 1968), we show that 24/7 payment settlement induces a precautionary demand for...
Persistent link: https://www.econbiz.de/10012243377
Cover Image
Fintech: is this time different? : a framework for assessing risks and opportunities for central banks
Aaron, Meyer; Rivadeneyra, Francisco; Sohal, Samantha - 2017
We investigate the risks and opportunities to the mandates of central banks arising from fintech developments. Fintech may affect the different areas of responsibility of central banks - mainly monetary policy and financial stability - by changing money demand and by changing the industrial...
Persistent link: https://www.econbiz.de/10011689315
Cover Image
Clearing and settlement systems from around the world : a qualitative analysis
Tompkins, Michael - 2016
As Canada continues to engage in a dialogue to develop the approach to modernizing its core payment systems, we analyze …
Persistent link: https://www.econbiz.de/10011489993