Etymology of Economy

An economy (or "the economy") is the realized social system of production,exchange, distribution and consumtion of goods and services of a country or other area. A given economy is the end result of a process that involves its technological evolution, civilization's history and social organizations, as well as its geography, natural resources endowment, and ecology, among other factors. These factors give context, content, and set the conditions and parameters in which an economy functions.

The word "economy" can be traced back to the Greek word "one who manages a household", derived from οἴκος, "house", and νέμω, "distribute (especially, manage)". From οἰκονόμος "of a household or family" but also senses such as "thrift", "direction", "administration", "arrangement", and "public revenue of a state". The first recorded sense of the word "economy", found in a work possibly composed in 1440, is "the management of economic affairs", in this case, of a monastery. Economy is later recorded in other senses shared by οἰκονομία in Greek, including "thrift" and "administration". The most frequently used current sense, "the economic system of a country or an area", seems not to have developed until the 19th or 20th century.

Today the range of fields of study exploring, registering and describing the economy or a part of it, include social science such as economic, as well as branches of history (economic history) or geography (economic geography) . Practical fields directly related to the human activities involving production, distribution, exchange, and consumption of goods and services as a whole, range from engineering to management and business administration to applied science to finance. All kind of professions,occupations,economic agents or economic activities, contribute to the economy. Consumption, saving and investment are core variable components in the economy and determine market equilibrium. There are three main sectors of economic activity : primary,secondary and tertiary

Source : Wikipedia