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{company, market, business}
{theory, work, human}
{rate, high, increase}
{land, century, early}
{system, computer, user}
{ship, engine, design}
{war, force, army}
{city, large, area}
{group, member, jewish}
{town, population, incorporate}

Industry refers to the production of an economic good (either material or a service) within an economy.[1]


Industrial sectors

There are four key industrial economic sectors: the primary sector, largely raw material extraction industries such as mining and farming; the secondary sector, involving refining, construction, and manufacturing; the tertiary sector, which deals with services (such as law and medicine) and distribution of manufactured goods; and the quaternary sector, a relatively new type of knowledge industry focusing on technological research, design and development such as computer programming, and biochemistry. A fifth, quinary, sector has been proposed encompassing nonprofit activities. The economy is also broadly separated into public sector and private sector, with industry generally categorized as private. Industries are also any business or manufacturing. Industries can be classified on the basis of raw materials,size and ownership Raw Materials:Industries may be agriculture based,Marine based,Mineral based,Forest based. Size:It refers to the amount of capital invested,number of people employed and the volume of production. Ownership:Industries can be classified into private sector,state owned or public sector,joint sector and co-operative sector Industry in the sense of manufacturing became a key sector of production and labour in European and North American countries during the Industrial Revolution, which upset previous mercantile and feudal economies through many successive rapid advances in technology, such as the steel and coal production. It is aided by technological advances, and has continued to develop into new types and sectors to this day. Industrial countries then assumed a capitalist economic policy. Railroads and steam-powered ships began speedily establishing links with previously unreachable world markets, enabling private companies to develop to then-unheard of size and wealth. Following the Industrial Revolution, perhaps a third of the world's economic output is derived from manufacturing industries&mash;more than agriculture's share.

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