This is the field of economic science devoted to the organization of the health care system and the determinants of the supply and demand for care. The National Health Expenditure (NHE) is the aggregate used for comparisons between OECD countries. National health expenditure is the final consumption expenditure on health goods and services. It includes public and private (including household) spending on curative, rehabilitative and long-term care, as well as on medical goods such as pharmaceuticals. It also includes expenditures on public health and preventive programs and administration. This indicator is presented as an overall figure and by source of funding (public/mandatory, voluntary and out-of-pocket). It can be expressed as a percentage of GDP, as a percentage of total national expenditure.
Example: in 2017, current health expenditure amounted to 3.7% of gross domestic product in Benin (WHO).