As in many developing economies, cash is still widely used in Colombia, even among merchants who accept payment cards. Indeed, 60% of these merchants use dissuasive strategies to make their clients pay with cash. This paper presents estimates of merchant card fees that are optimal according to...

Es steht außer Frage, dass die Überwindung der Covid-19-Krise und die damit verbundene Bereinigung von Bankbilanzen einen erheblichen Finanzierungs-‍, aber auch Risikoübernahmebedarf auslösen wird. Vor diesem Hintergrund stellt sich zu Recht die Frage, wie die bisher dominierende Form der...

Women and youth in developing countries remain unserved or underserved by formal financial services. The rise of digital financial services (DFS), including mobile money, provides a promise to accelerate financial and economic inclusion to these population segments. As a result, both academic...

Since Barnett derived the user cost price of money, the economic theory of monetary services aggregation has been developed and extended into a field of its own with solid foundations in microeconomic theory. Divisia monetary aggregates have repeatedly been shown to be strictly preferable to...

This paper explores the impact of contactless payment on consumers' demand for cash at an early stage of diffusion. The specific devices that are investigated are debit and credit cards, in which the feature is embedded. A novel balanced panel dataset drawn from representative surveys on...

In this paper the authors investigate the statistical properties of some cryptocurrencies by using three layers of analysis: alpha-stable distributions, Metcalfe’s law and the bubble behaviour through the LPPL modelling. The results show, in the medium to long-run, the validity of Metcalfe's...

This paper studies money demand in Switzerland under free banking before the establishment of the Swiss National Bank. We find that, in addition to income, the banks' balance-sheet-to-GDP ratio and the number of banks were important determinants of long-run money demand. The former variable also...

This paper presents a theoretical framework that allows a taxonomy of hyperinflation, namely: (i) bubble, (ii) weak and (iii) strong hyperinflation. The inflation tax revenue curve is used to characterize each type of hyperinflation and we use this curve to test them. The bubble and strong...

The coexistence of fiat money (cash) and digital monies constitutes a system of parallel currencies as media of exchange. This paper asks whether a new (digital) currency is essential: Does a new currency allow for a better resource allocation even if a fully accepted currency is in circulation...

This paper investigates the relationship between the bitcoin price and the hashrate by disentangling the effects of the energy efficiency of the bitcoin mining equipment, bitcoin halving, and of structural breaks on the price dynamics. For this purpose, we propose a methodology based on...