Beyond its terrible toll in human lives and suffering, the Ebola epidemic has inflicted a measurable economic impact on West Africa in terms of forgone output, higher fiscal deficits, rising prices, lower real household incomes, and greater poverty. This impact results partly from the health-care costs and forgone productivity associated with being infected, but it is driven principally by the efforts of the uninfected population to avoid exposure (“aversion behavior”). The Economic Impact of the 2014 Ebola Epidemic: Short- and Medium-Term Estimates for West Africa provides a mixed methods analysis of the economic impact, combining theory on the channels of economic impact of the epidemic, economic indicators across sectors in the affected countries, and models of how these economies interact with each other and with the broader world. The result is a quantification of the potential overall magnitude of the economic impact for Guinea, Liberia, and Sierra Leone, as well as for West Africa as a whole.