How government can control multinational business?

Answer 1

tariffs are used (badly in my estimation) to equalize income and outflow but they only result in discouraging international trade and sometimes send business running for freer states like Hongkong. Regulation on both imports and exports are also used. But a nation is only able to regulate what goes on within it's own borders. The government usually works with other governments to establish standardized regulation. Some influence can be exercised on foreign governments and foreign governments also flex their own influence. International treaties are hammered out but all of this is limited by the market principles as the competition ensues for doing business between countries.