E42 - Monetary Systems; Standards; Regimes; Government and the Monetary System; Payment Systems
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The Role of Public Money in the Digital Age
A well-functioning monetary system is characterized by public and private forms of money that exchange at par as value flows freely between them. A relevant retail public money—whether in the form of cash, a central bank digital currency or both—is a necessary component of such a monetary system. -
Untapped Potential: Mobile Device Ownership and Mobile Payments in Canada
We present a two-stage model of mobile phone and mobile payment usage that controls for selectivity. This reveals unobserved factors that work against having a mobile phone and toward mobile paying. Therefore, people who are unable to acquire or choose not to own a mobile device might have unmet payment needs. -
Analysis of DeFi Oracles
Oracles are constructs used in decentralized finance to price assets relative to each other. However, oracles contain defects that could lead to manipulation attacks. Such attacks exploit pricing models embedded within oracles to defraud creators and users. We automatically verify defects, which if mitigated, improves the security of digital currency. -
Demand for Canadian Banknotes from International Travel: Indirect Evidence from the COVID-19 Pandemic
This study uses the COVID-19 travel restrictions to estimate foreign demand for Canadian banknotes. It reveals that international visitors accounted for about 10% of all $100 CAD notes in circulation pre-pandemic, with each visitor carrying an average of $165 in hundred-dollar bills. -
Finding a Needle in a Haystack: A Machine Learning Framework for Anomaly Detection in Payment Systems
Our layered machine learning framework can enhance real-time transaction monitoring in high-value payment systems, which are a central piece of a country’s financial infrastructure. When tested on data from Canadian payment systems, it demonstrated potential for accurately identifying anomalous transactions. This framework could help improve cyber and operational resilience of payment systems. -
CBDC: Banking and Anonymity
We examine the optimal amount of user anonymity in a central bank digital currency 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.