Economy refers to the human activities related with the production, distribution, exchange, and consumption of goods and services. However, its definition transformed throughout history with the activities attributed to economy. The composition of a given economy is inseparable from civilization's history and social organization, and from Earth's geography and ecology, e.g. ecoregions which represent different agricultural and resource extraction opportunities, among other factors.

Economy can we divided into the following categories:

• India Economy
• Global Economy
• Developing Economy
• fuel Economy
• Engineering Economy
• Political Economy