This article identifies the fundamental unit of the economy: an econom
ic engine. It explores the structure and workings of the economic engi
ne. it derives the properties of economies based on the economic engin
e. It illustrates the insights that can be obtained and policy leverag
es that can be sought with the identification of the economic engines.
Although nature's tax on activity is a commonplace understanding now,
the fundamental economic identity is not. The organization of nations
and economies of our times, the discussions at forums like the UNCED
(Bisso, 1992), clearly indicate that the economic identity is not reco
gnized. Since identity is the basic prerequisite for communication or
action, we present our thesis on the economic engine as the fundamenta
l unit of the economy.