Cash is accused of three sins: First, cash is inefficient and costly to use, and society would be better off without it. Second, it promotes crime, and facilitates money laundering and tax evasion. Third, it makes negative nominal interest rates infeasible. In certain situations, this may hinder...

Blockchain forks can have severe economic implications, sow uncertainty and undermine trust. In this paper, we introduce a formal framework to study the emergence, persistency and economic consequences of blockchain forks. We argue that blockchain forks can be process- or protocol-based and...

In this paper, we propose an autonomous vending machine that is governed by a public Blockchain and smart contracts platform. Set up as a decentralized autonomous organization, it serves as an open marketplace for physical goods, where anyone can buy and/or sell objects. We propose a basic...