Final answer:
The Korean television manufacturer's investment in a television tube plant in Mexico is known as Foreign Direct Investment (FDI), where companies purchase firms or start new ventures in foreign countries.
Step-by-step explanation:
The form of international business where a Korean television manufacturer invests in a new television tube plant in Mexico is known as Foreign Direct Investment (FDI). This type of investment involves purchasing a firm or starting up a new venture in another country with a lasting interest.
The case of multinational automobile manufacturers like Volkswagen and Toyota setting up assembly plants in Mexico for lower wages and the example of InBev's acquisition of Anheuser-Busch illustrate the concept of FDI where companies invest in operations or acquire businesses across national borders to capitalize on cost savings, access new markets, or leverage other strategic advantages.