ECONOMY
An economy is the realized social system of production, exchange, distribution, and consumption 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 organization, as well as its geography, resource endowment, and ecology, among other factors. These factors give context, content, and set the conditions and parameters in which an economy functions.
Economic sectors
The economy includes several sectors also called industries, that evolved in successive phases.
The ancient economy was mainly based on subsistence farming.
The industrial revolution lessened the role of subsistence farming, converting it to more extensive and monocultural forms of agriculture in the last three centuries. The economic growth took place mostly in mining, construction and manufacturing industries.
In the economies of modern consumer societies there is a growing part played by services, finance, and technology the knowledge economy.