In this week's Brainstorm, Yascha Mounk and Shashank Joshi are joined by the Duncan Weldon, head of research at the Resolution Group and previously economics correspondent at BBC Newsnight. We ask why productivity in the UK seems to be in a funk, and what can be done about it.

We also reflect on the strength of the American far right, after the events in Charlottesville on August 12. And we look at Australia's political crisis to probe deeper into the meaning of citizenship.

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