The article discusses how foreign investment has affected China's regional economic growth. It shows that while foreign investment has boosted the economy in the eastern region, it has also widened the economic gap between different regions. By studying these differences, researchers aim to find ways to use foreign investment to promote growth in central and western China, and reduce regional disparities. The research highlights the importance of understanding how foreign investment impacts economic growth in different regions, and how policies can be adjusted to benefit all areas of China.