With a group of young people at the World Bank, we've launched an annual conference series on topics in taxation with relevance for developing countries. 

The 2020 conference will focus on Taxing Personal Income and Wealth in Developing Countries. It will be held on September 24-25, 2020, in Washington DC or virtually. Here is the conference website. 

The first conference in the series focused on The Value Added of Value-Added Taxes. The conference was organized jointly with the Office of Tax Policy Research at the University of Michigan, Columbia University and the Norwegian University of Life Sciences and held in Washington DC on May 9-10, 2019. Here is the program.