The most direct impact on the state of the world market, the national liberation movements in India and China. Namely: solving their social problems, they reoriented their markets to their own goods, deciding that they can do without the Western economy. In India in the domestic market, only Indian fabrics were introduced. Millions of people wrapped their bodies and heads in principally only homespun cloth. They stopped selling tea, spices and salt abroad. In China, it is the same with rice, tea, etc. In other words, India and China have switched to self-sufficiency, thereby partially paralyzing foreign trade.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.