Introduction Central Bank Digital Currency (CBDC) is a digital means of payment, issued by a country’s (or region’s) central bank, denominated in the national currency. According to the latest results of the annual CBDC survey conducted by the Bank for International Settlements, 94% of the respondents say they are working...| Lars Hupel’s website
When submitting a manuscript to arXiv, the preferred way is to upload the LaTeX source files. arXiv’s infrastructure will then build everything from source. For me, this process has been going smoothly, since typically, LaTeX packages are compatible across versions. However, while updating a draft, I stumbled–for the second time–over...| Lars Hupel’s website
I invest a chunk of my earnings into a portfolio, largely comprising ETFs. I don’t reshuffle the portfolio often and I mostly hold on to them. At some point I wondered what the actual yearly interest of the portfolio is? Let’s figure it out.| Lars Hupel’s website
When we think of “electronic payments”, there are a lot of different interpretations: bank cards, credit cards, mobile money, QR codes, and more. Lately, many central banks – including the European Central Bank – have started investigating or piloting digital currencies (CBDC) to introduce yet another way to pay electronically. The wish list for CBDC is long: it should support online & offline payments, work as usual at the point of sale, be accessible to users without bank accounts, ...| Lars Hupel’s website
Lewis McLellan of OMFIF has interviewed me about offline digital payments. The following is a transcript, lightly edited for readability. Listen to the original recording here. So let’s start off with a little bit of context and offline payments as a concept. Can you break that down a little bit?...| Lars Hupel’s website
The work on the Digital Euro is going full steam ahead. In January, the European Central Bank has issued calls for applications for component providers, including for example offline payments and fraud & risk management. Meanwhile, the European Parliament is considering the legislation in committee. In this talk, I will give an update about the current state and developments to be expected in the near future.| Lars Hupel’s website
About two years ago (late 2022) I was diagnosed with a rare allergic condition that affects the esophagus. As far as I can see, there are not a lot of experience reports written by patients, so I’m contributing mine here. The allergy is not deadly, but has some annoying symptoms. (You should not read this post if you do not like hearing about endoscopies and/or medical emergencies.)| Lars Hupel’s website
As we increasingly move towards digitisation and decentralisation, tokenisation has gained much traction in the financial world. But how is tokenisation related to securities and what else is missing to make markets more efficient?| Lars Hupel’s website
I have been on a lot of flights in my life, and I continue to fly. This page is to make transparent my efforts to offset the carbon emissions caused by those flights. I am aware that reducing carbon emissions is vastly better than offsetting them, which is why I...| Lars Hupel’s website
About one and a half years ago, we moved to a place with a decently-sized garden. Initially confused about whether to do anything with it, let alone what to do with it, I somehow ended up slowly becoming a gardener. Despite my total and utter cluelessness, now we have raised beds.| Lars Hupel’s website
When we think of “electronic payments”, there are a lot of different interpretations: bank cards, credit cards, PayPal and the likes, mobile money, and cryptocurrencies. But they all work in widely different ways. Lately, many central banks – including the European Central Bank – have started investigating or piloting digital currencies to introduce yet another way to pay electronically. In this talk, I will explain the technical (and social) differences between those payment methods ...| Lars Hupel’s website
This sounds like a very simple question. But as usual, the answer is not so simple … As I have argued in my paper, CBDC needs to be interoperable with various classes of other payment systems, such as instant payment (IPS), real-time gross settlement (RTGS), but also stablecoins. Even though...| Lars Hupel’s website
Introduction| Lars Hupel’s website
Introduction| Lars Hupel’s website
Papers marked with have an experimental HTML rendering that contains the same content as the PDF version, but should be easier to read on mobile devices.| Lars Hupel’s website
Introduction| Lars Hupel’s website
Research papers, at least of the computer science variety, are famously written in LaTeX and published as PDF.| Lars Hupel’s website
My summer holidays in 2023 took me through Sweden, Denmark and Norway.| Lars Hupel’s website
My summer holidays in 2023 took me through Sweden, Denmark and Norway.| Lars Hupel’s website
Introduction| Lars Hupel’s website