The study looked at how different regions in China have grown economically over time. They found that regions are becoming more connected in terms of development, which affects economic growth. There was no overall trend of all regions getting closer in terms of economic growth, but regions with lower initial economic levels tended to grow faster. When the government invested more in certain areas and in education, those regions saw faster economic growth. This shows that government policies and education can help boost economic growth in less developed areas.