Any analysis of health financing issues has to begin with sound estimates of the level and flow of resources in a health system, including total levels of spending, the sources of health expenditures, the uses of funds in terms of services purchased, and in terms of who purchases them. The analysis should also aim at understanding how these resource flows are correlated with health system outcomes, including those of improving health, reducing health inequalities, and reducing the incidence of catastrophic health expenditure. National Health Accounts (NHA) provide a framework to collect,...