Chang AY, et al. - In this report, researchers described the past, present, and predicted future of global health spending, with a focus on equity spending across countries. Globally, they found that health spending rose steadily from 1995, reaching $8.0 trillion in 2016, and was forecasted to increase further to a total of $15.0 trillion by 2050—but at a slower growth rate in most countries. Overall, the investigators noted that global health financing steadily increased over the past 20 years and is expected to continue to grow in the future, though at a slower pace of growth and with persistent disparities in health spending per capita between countries. Out-of-pocket spending outside high-income countries is projected to remain substantial. It is expected that many low-income countries will remain dependent on development assistance, although larger health investments may be feasible with higher government spending. In the absence of sustained new health investment, it is essential to increase health spending efficiency in order to meet global health goals.