Systematic data on annual infant mortality rates are of use to a variety of social science research programs in demography, economics, sociology, and political science. Infant mortality rates may be used both as a proxy measure for economic development, in lieu of energy consumption or...

Existing work cannot explain why countries form alliances when direct security threats are not a key political issue, though we know countries routinely do engage in that behavior. Countries form alliances to manage the essential problem that they must use finite budget resources to provide...