what are the main sectors of the economy
Primary Tertiary Secondary
title: Economy text: of economics, but may include sociology (economic sociology), history (economic history), anthropology (economic anthropology), and geography (economic geography). Practical fields directly related to the human activities involving production, distribution, exchange, and consumption of goods and services as a whole, are engineering, management, business administration, applied science, and finance. All professions, occupations, economic agents or economic activities, contribute to the economy. Consumption, saving, and investment are variable components in the economy that determine macroeconomic equilibrium. There are three main sectors of economic activity: primary, secondary, and tertiary. Due to the growing importance of the economical sector in modern times, the term title: Tertiary sector of the economy text: Tertiary sector of the economy The tertiary sector or service sector is the third of the three economic sectors of the three-sector theory. The others are the secondary sector (approximately the same as manufacturing), and the primary sector (raw materials). The service sector consists of the production of services instead of end products. Services (also known as "intangible goods") include attention, advice, access, experience, and affective labor. The production of information has long been regarded as a service, but some economists now attribute it to a fourth sector, the quaternary sector. The tertiary sector of industry involves the provision of title: Service 4.0 text: Service 4.0. In economics, a service is an intangible commodity, an economic activity where the buyer does not generally, except by exclusive contract, obtain exclusive ownership of the thing purchased. According to the North American Standard Industry Classification System and the International Standard Industrial Classification of All Economic Activities there are two major sectors in the economy: the goods-producing sector and the service-producing sector. The goods-producing sector includes agriculture, forestry, and fishing; mining; construction; and manufacturing. The service-producing sector includes the divisions of (1) transportation, communications, and utilities; (2) wholesale trade; (3) retail trade; (4) finance, insurance, and real estate; title: Economy of the United States text: Economy of the United States The economy of the United States is a highly developed mixed economy. It is the world's largest economy by nominal GDP and the second-largest by purchasing power parity (PPP). It also has the world's seventh-highest per capita GDP (nominal) and the eleventh-highest per capita GDP (PPP) in 2016. The US has a highly diversified, world-leading industrial sector. It is also a high-technology innovator with the second-largest industrial output in the world. The U.S. dollar is the currency most used in international transactions and is the world's foremost reserve currency, backed by its science and technology, title: Economy of the United States text: average household and employee income among OECD nations, and in 2010, they had the fourth-highest median household income, down from second-highest in 2007. The United States has held the world's largest national economy (not including colonial empires) since at least the 1890s. It is the world's largest producer of oil and natural gas. In 2016, it was the world's largest trading nation as well as its second-largest manufacturer, representing a fifth of the global manufacturing output. The U.S. also has both the largest economy and the largest industrial sector, at 2005 prices according to the UNCTAD. The U.S. not only