TNCs, or transnational corporations, are firms that coordinate operations across multiple countries even if they do not own subsidiaries in those countries. The document discusses that 51 of the top 100 economies are corporations, and some TNCs have revenues greater than some countries' GDPs. There are over 63,000 TNCs worldwide with over 690,000 foreign affiliates. The advantages of TNCs include job creation and economic multiplier effects. However, the disadvantages include potential exploitation of workers through sweatshops, union busting, low wages, and lack of benefits and protections.
