This paper studies the evolution of worldwide military spending during 1970-2018. It finds that military spending in relation to GDP is converging, but into three separate groups of countries. In the largest group, responsible for 90 percent of worldwide spending, outlays have remained...

Digitization promises to reshape fiscal policy by transforming how governments collect, process, share, and act on information. More and higher-quality information can improve not only policy design for tax and spending, but also systems for their management, including tax administration and...