- Transnational corporations (TNCs) operate in multiple countries and help connect economies globally through trade and investment. However, they are also criticized for tax avoidance, environmental damage, and negatively impacting local industries in host countries. - Some key characteristics of TNCs include growing through acquisitions of other companies, outsourcing manufacturing to third parties, and assembling products from parts made elsewhere. Both host and source countries can experience costs like job losses and environmental issues, but also benefits like increased investment and economic growth. - A case study on Tesco details its expansion from the UK into other markets like Asia and how it has faced some criticism over workers' rights and community impacts in these new