UBI or Universal Basic Income is one of the most important social support systems currently under under consideration by governments, corporations and academia.

In this series we speak to eight people from various institutions, with different viewpoints on the potential to implement a UBI system at national and international levels. We asked them a series of questions, delving into the detail, which we'll be publishing across the series but to get started we asked them the most obvious, 'what is UBI?'.

This is what they have to say ..