It seems like the distribution of wealth (and other forms of power) following transformative AI is very consequential for the value of the long-term future, affecting both immediate suffering and well-being and the chances of a long-term value lock-in. I'm aware of the Windfall Clause Report and the three papers and several posts cited here. What other work should I be aware of?
Maybe you're asking about intra-country wealth distributions (like: how will AI affect each country's Gini coefficient?), but I've heard that ETIRI at the World Bank has done some research on how AI will affect wealth, unemployment, and trade from an international standpoint. Let me see if I can find some links to their work.