The study looked at how foreign investment from major countries affects technology development in different regions of China. They found that foreign investment from wealthy countries has a bigger impact on technology progress than investment from developing countries. The level of support from the host country's government also plays a significant role in how much technology improves. Factors like research ability, skilled workers, types of industries, and economic growth all drive technological advancements in different regions. The study suggests ways to improve technology development based on these findings.