First, many multinational companies gather in Beijing. The economic reforms in the 1990's attracted a mass of capital and technology from abroad and created an economic boom for Beijing. The city has 52 Fortune Global 500 companies, which operate extensively in Beijing.
You can also find many high-paid jobs in its financial industry. Beijing Financial Street is known as the Wall Street of China. It has three of China's most critical regulatory industries, the largest Chinese commercial banks and hundreds of domestic and foreign financial institutions such as Goldman Sachs and JPMorgan Chase. Having some teaching jobs in Beijing are good.