Digital currencies and fintech
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Privacy-Preserving Post-Quantum Credentials for Digital Payments
Digital payments and decentralized systems enable the creation of new financial products and services for users. One core challenge in digital payments is the need to protect users from fraud and abuse while retaining privacy in individual transactions. We propose a pseudonymous credential scheme for use in payment systems to tackle this problem. -
Crowdfunding and Risk
Crowdfunding may enable unique products to reach the consumer market. I model a crowdfunding technology that publicly screens consumer demand early in the production process. In this model, entrepreneurs like crowdfunding for risky projects where demand is uncertain, but not for large, safe projects or for projects where production costs are uncertain. -
May 8, 2023
Bank of Canada launches public consultations on a digital dollar
The Bank of Canada is launching an online public consultation on the features that could be included in a digital Canadian dollar. -
A central bank digital currency for offline payments
Offline functionality is a key consideration for a potential CBDC. We describe the different types of offline functionality based on their duration outside of network connection—either intermittent (for short periods) or extended (for longer periods). We discuss the advantages and drawbacks of each and consider implications for end-user devices, system resilience and universal accessibility. -
On the Fragility of DeFi Lending
We develop a dynamic model to capture key features of decentralized finance lending. We identify a price-liquidity feedback: the market outcome in any given period depends on agents' expectations about lending activities in future periods, with higher future price expectations leading to more lending and higher prices in that period. -
Central Bank Digital Currencies and Banking: Literature Review and New Questions
We review the nascent but fast-growing literature on central bank digital currencies (CBDCs), focusing on their potential impacts on private banks. We evaluate these impacts in three areas of traditional banking: payments, lending and liquidity and maturity transformation. We also take a broader look at CBDCs and highlight two promising directions for future research. -
The 2021–22 Merchant Acceptance Survey Pilot Study
The rise in digital payment innovations has spurred a discussion about the future of cash at the point of sale. The Bank conducted the 2021–22 Merchant Acceptance Survey Pilot Study to study trends in merchant cash acceptance and monitor conditions for the potential issuance of a central bank digital currency. -
2021 Methods-of-Payment Survey Report
We present results from the 2021 Methods-of-Payment Survey, including updated payment shares. We highlight long-term trends and provide additional context for results with respect to the COVID-19 pandemic. -
Improving the Efficiency of Payments Systems Using Quantum Computing
We develop an algorithm and run it on a hybrid quantum annealing solver to find an ordering of payments that reduces the amount of system liquidity necessary without substantially increasing payment delays.