The ghost ant is associated with a complex of ant species known as tramp ants that is widely distributed in tropical and subtropical latitudes worldwide. In fact, Tapinoma melanocephalum was once referred to simply as the tramp ant..
Macroeconomics (from the Greek prefix makro- meaning large and economics) is a branch of economics dealing with the performance, structure, behavior, and decision-making of an economy as a whole. This includes national, regional, and global economies.
The branch of economics that examines how economic decisions are made by individual businesses, households, and industries. In contrast, macroeconomics analyzes big-picture economic decision-making throughout the economy and examines the effect that employment or inflation is likely to have on the economy. See also macroeconomics.