We want to understand decisions, we want to shed light into the dark. The more complex an ML model’s design, the more difficult it is to describe the relationship between input and output verbally or using mathematical formulae. It is then often difficult for modellers, users, validators and also for us supervisors to verify the results in detail.
The store of value function guarantees a persistent level of demand for banknotes even as digital payments take off. And cash also has unique features which underpin its demand. For example, it is often the only way to guarantee financial inclusion, as it allows users to make payments at no cost.