How much money is $3 billion in context?
While objectively $3 billion is a large amount, CZI’s pledge does not radically alter the balance of global health investments. The Institute for Health Metrics and Evaluation finds that donors pledged $36.4 billion for global health in 2015. If we assume that this funding remains flat and CZI allocates its funding in equal portions of $300 million each year, CZI’s pledge is less than 1 percent of total funding. Economist Charles Kenny points out that the world spends $7 trillion each year on health — totaling “more than 23,000 times the size of the annual Chan-Zuckerberg investment.”