A more useful term is manufacturing as that’s a lot easier to picture, recognize, and then think about the differences a place has with more manufacturing firms and their growth from one artisan/craftsman operations into ones with many employees and export sales. Manufacturing, an evolution sometimes but not always from further processing of local natural resources or energy generation sources like England’s coal fields, the U.S. and Indonesia’s oil and coal fields, etc., means the country has to greatly increase it’s electrical power generation and distribution capacities, endlessly improve it’s transportation and water infrastructure, focus on seaports even more, educate and train it’s workforce for very different work (although farmers make the easiest transition into manufacturing work at least in my experiences) and develop new laws and regulations like patent protection, factory emissions, domestic and foreign investors’ protections, etc..
If a country is mostly dependent on subsistence agriculture and tourism, it’s not industrialized. If it makes a lot of products or components that are valued outside the country as well as inside, it’s successfully industrialized like Taiwan, Shandong, Shanghai, Guangdong, Singapore, Australia, Japan, the U.S., Germany, Britain, France, Austria, Czech Republic, Sweden, Finland, Mexico, Brazil, Argentina, Chile, etc.. Many more countries are in a transition now in it’s 3rd or 4th century.
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