Oversimplification of "Control"
The authors' measure of Chinese control over mining, focusing primarily on ownership stakes, might not fully capture the complexity of influence exerted through other means like management contracts, interlocking directorates, technology transfer, long-term contracts, and infrastructure development.
Data limitations and potential underestimation
The authors acknowledge potential underestimation of Chinese control due to data limitations, particularly for smaller, private companies and those operating in countries with less transparency. This makes it hard to definitively assess the true extent of Chinese influence.
Limited predictive power regarding future trends
While the study notes changes in Chinese companies' behavior over time (learning from mistakes, adapting to international standards), it doesn't offer a robust framework for predicting future trends. Factors like evolving Chinese policies, global metal demand, and host country responses are mentioned but not deeply analyzed in terms of their impact on future Chinese control.
Insufficient analysis of geopolitical risks
The authors acknowledge potential political disadvantages for Chinese companies due to geopolitical tensions, especially between the US and China, but don't offer an in-depth analysis of how these tensions could impact future investments and control over mining operations in Africa or globally.