Secondary sector of the economy

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In macroeconomics, the secondary sector of the economy is an economic sector in the three-sector theory that describes the role of manufacturing. It encompasses industries that produce a finished, usable product or are involved in construction.

This sector generally takes the output of the primary sector (i.e. raw materials like metals, wood) and creates finished goods suitable for sale to domestic businesses or consumers and for export (via distribution through the tertiary sector). Many of these industries consume large quantities of energy, require factories and use machinery; they are often classified as light or heavy based on such quantities. This also produces waste materials and waste heat that may cause environmental problems or pollution (see negative externalities). Examples include textile production, car manufacturing, and handicraft.^[1]

Manufacturing is an important activity in promoting

The secondary sector depends on the primary sector for the raw materials necessary for production. Countries that primarily produce

developed economies

.

20 largest Countries by Industrial Output (in PPP terms) according to the IMF and CIA World Factbook, at peak level as of 2020 ^{[citation needed]}

Economy	Countries by Industrial Output (in PPP terms) at peak level as of 2020 (billions in USD)
(01)  China	11,261
(—)  European Union	5,729
(02)  United States	4,093
(03)  India	2,604
(04)  Japan	1,719
(05)  Indonesia	1,549
(06)  Russia	1,422
(07)  Germany	1,364
(08)  South Korea	912
(09)  Saudi Arabia	840
(10)  Mexico	835
(11)  Turkey	763
(12)  Brazil	720
(13)  United Kingdom	639
(14)  France	597
(15)  Italy	587
(16)  Iran	578
(17)  Canada	537
(18)  Poland	517
(19)  Thailand	499
(20)  Egypt	490
The twenty largest countries by industrial output (in PPP terms) at peak level as of 2020, according to the IMF and CIA World Factbook.[citation needed]

References

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