Secondary sector of the economy in the context of "Manufacturing"

In economics, the primary sector is the economic sector which comprises industry involved in the extraction and production of raw materials, such as farming, logging, fishing, forestry and mining. The primary sector tends to make up a larger portion of the economy in developing countries than it does in developed countries. For example, in 2018, agriculture, forestry, and fishing comprised more than 15% of GDP in sub-Saharan Africa but less than 1% of GDP in North America.

In developed countries the primary sector has become more technologically advanced, enabling for example the mechanization of farming, as compared with lower-tech methods in poorer countries. More developed economies may invest additional capital in primary means of production: for example, in the United States Corn Belt, combine harvesters pick the corn, and sprayers spray large amounts of insecticides, herbicides and fungicides, producing a higher yield than is possible using less capital-intensive techniques. These technological advances and investment allow the primary sector to employ a smaller workforce, so developed countries tend to have a smaller percentage of their workforce involved in primary activities, instead having a higher percentage involved in the secondary and tertiary sectors.

A developing country is a country with a less-developed industrial base and a lower Human Development Index (HDI) relative to developed countries. However, this definition is not universally agreed upon. There is also no clear agreement on which countries fit this category. The terms low-and middle-income country (LMIC) and newly emerging economy (NEE) are often used interchangeably but they refer only to the economy of the countries. The World Bank classifies the world's economies into four groups, based on gross national income per capita: high-, upper-middle-, lower-middle-, and low-income countries. Least developed countries, landlocked developing countries, and small island developing states are all sub-groupings of developing countries. Countries on the other end of the spectrum are usually referred to as high-income countries or developed countries.

There are controversies over the terms' use, as some feel that it perpetuates an outdated concept of "us" and "them". In 2015, the World Bank declared that the "developing/developed world categorization" had become less relevant and that they would phase out the use of that descriptor. Instead, their reports will present data aggregations for regions and income groups. The term "Global South" is used by some as an alternative term to developing countries.

A developed country, or advanced country, is a country that has a high quality of life, developed economy, and advanced technological infrastructure relative to other less industrialized nations. Most commonly, the criteria for evaluating the degree of economic development are the gross domestic product (GDP), gross national product (GNP), the per capita income, level of industrialization, amount of widespread infrastructure and general standard of living. Which criteria are to be used and which countries can be classified as being developed are subjects of debate. Different definitions of developed countries are provided by the International Monetary Fund and the World Bank; moreover, HDI ranking is used to reflect the composite index of life expectancy, education, and income per capita. In 2025, 40 countries fit all three criteria, while an additional 22 countries fit two out of three.

Developed countries have generally more advanced post-industrial economies, meaning the service sector provides more wealth than the industrial sector. They are contrasted with developing countries, which are in the process of industrialisation or are pre-industrial and almost entirely agrarian, some of which might fall into the category of Least Developed Countries. As of 2023, advanced economies comprise 57.3% of global GDP based on nominal values and 41.1% of global GDP based on purchasing-power parity (PPP) according to the IMF.

Rural flight (also known as rural-to-urban migration, rural depopulation, or rural exodus) is the migratory pattern of people from rural areas into urban areas. It is urbanization seen from the rural perspective.

In industrializing economies like Britain in the eighteenth century or East Asia in the twentieth century, it can occur following the industrialization of primary industries such as agriculture, mining, fishing, and forestry—when fewer people are needed to bring the same amount of output to market—and related secondary industries (refining and processing) are consolidated. Rural exodus can also follow an ecological or human-caused catastrophe such as a famine or resource depletion. These are examples of push factors.

The automotive industry in Turkey plays an important role in the manufacturing sector of the Turkish economy. The companies operating in the Turkish automotive sector are mainly located in the Marmara region, especially Bursa.

In 2023, Turkey produced 1,486,393 motor vehicles, ranking as the 13th largest producer in the world (production peaked at 1,695,731 motor vehicles in 2017, when Turkey also ranked 13th). Turkish automotive companies like TEMSA, Otokar and BMC are among the world's largest van, bus and truck manufacturers. Togg, or Turkey's Automobile Joint Venture Group Inc. is the first all-electric vehicle company of Turkey. With a cluster of car-makers and parts suppliers, the Turkish automotive sector has become an integral part of the global network of production bases, exporting more than $35 billion worth of motor vehicles and components. In 2017, nearly 85% of exports went to Europe. Global car manufacturers with production plants include Tofaş, Oyak-Renault, Hyundai Assan Otomotiv, Toyota Motor Manufacturing Turkey, Ford Otosan.