Quetzal ("Merriam-Webster's Collegiate Dictionary"), from the Nahuatl root = "stand up" used to refer to an upstanding plume of feathers. The word entered English through Spanish. The word "quetzal" was originally used for just the resplendent quetzal, the long-tailed quetzal of Guatemala, (more specifically a town called Petén) which is the national bird and the name of the currency of Guatemala. It still often refers to that bird specifically but now also names all the species of the genera "Pharomachrus" and "Euptilotis". "Pharomachrus" is from Ancient Greek , "mantle", and , "long", referring to the wing and tail coverts of the
Monetary-disequilibrium theory Monetary-disequilibrium theory Monetary disequilibrium theory is a product of the Monetarist school and is mainly represented in the works of Leland Yeager and Austrian macroeconomics. The basic concept of monetary equilibrium (disequilibrium) was, however, defined in terms of an individual's demand for cash balance by Mises (1912) in his "Theory of Money and Credit". Monetary disequilibrium is one of three theories of macroeconomic fluctuations which accord an important role to money, the others being the Austrian theory of the business cycle and one based on rational expectations. Leland Yeager's (1968) understanding of the monetary disequilibrium theory begins with fundamental properties