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.
Monetary economics. Monetary economics is a branch of economics that provides a framework for analyzing money in its functions as a medium of exchange, store of value, and unit of account. It considers how money, for example fiat currency, can gain acceptance purely because of its convenience as a public good.